From 49fdacdb8199921a322d2da4c83b31cfd56935ad Mon Sep 17 00:00:00 2001
From: Anna Gringauze <annagrin@google.com>
Date: Fri, 24 Feb 2023 11:20:21 -0800
Subject: [PATCH 1/5] Prepare to release dwds

---
 dwds/CHANGELOG.md               |  2 +-
 dwds/lib/src/injected/client.js | 61 +++++++++++++++++----------------
 dwds/lib/src/version.dart       |  2 +-
 dwds/pubspec.yaml               |  2 +-
 4 files changed, 35 insertions(+), 32 deletions(-)

diff --git a/dwds/CHANGELOG.md b/dwds/CHANGELOG.md
index 54de17e8c..80fa155b1 100644
--- a/dwds/CHANGELOG.md
+++ b/dwds/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 18.0.0-dev
+## 18.0.0
 
 - Cleanup `getObject` code for lists and maps.
   - Now works with offset `0` and `null` count.
diff --git a/dwds/lib/src/injected/client.js b/dwds/lib/src/injected/client.js
index c2f537631..72916003d 100644
--- a/dwds/lib/src/injected/client.js
+++ b/dwds/lib/src/injected/client.js
@@ -1,4 +1,4 @@
-// Generated by dart2js (NullSafetyMode.sound, csp, deferred-serialization, intern-composite-values), the Dart to JavaScript compiler version: 3.0.0-edge.1bf4dd4595ab960b1ad4aebad986fa20cb261889.
+// Generated by dart2js (NullSafetyMode.sound, csp, deferred-serialization, intern-composite-values), the Dart to JavaScript compiler version: 3.0.0-263.0.dev.
 // The code supports the following hooks:
 // dartPrint(message):
 //    if this function is defined it is called instead of the Dart [print]
@@ -8028,7 +8028,7 @@
       t2.add$1(0, new A.DoubleSerializer(A.BuiltList_BuiltList$from([B.Type_double_K1J], t1)));
       t2.add$1(0, new A.DurationSerializer(A.BuiltList_BuiltList$from([B.Type_Duration_SnA], t1)));
       t2.add$1(0, new A.IntSerializer(A.BuiltList_BuiltList$from([B.Type_int_tHn], t1)));
-      t2.add$1(0, new A.Int64Serializer(A.BuiltList_BuiltList$from([B.Type_Int64_gc6], t1)));
+      t2.add$1(0, new A.Int64Serializer(A.BuiltList_BuiltList$from([B.Type_Int64_ww8], t1)));
       t2.add$1(0, new A.JsonObjectSerializer(A.BuiltList_BuiltList$from([B.Type_JsonObject_gyf, B.Type_BoolJsonObject_8HQ, B.Type_ListJsonObject_yPV, B.Type_MapJsonObject_bBG, B.Type_NumJsonObject_H9C, B.Type_StringJsonObject_GAC], t1)));
       t2.add$1(0, new A.NullSerializer(A.BuiltList_BuiltList$from([B.Type_Null_Yyn], t1)));
       t2.add$1(0, new A.NumSerializer(A.BuiltList_BuiltList$from([B.Type_num_cv7], t1)));
@@ -8472,38 +8472,28 @@
     },
     safeUnawaited_closure: function safeUnawaited_closure() {
     },
-    Int32__decodeDigit(c) {
-      if (c >= 48 && c <= 57)
-        return c - 48;
-      else if (c >= 97 && c <= 122)
-        return c - 97 + 10;
-      else if (c >= 65 && c <= 90)
-        return c - 65 + 10;
-      else
-        return -1;
-    },
-    Int64__parseRadix(s, radix) {
-      var i, negative, d0, d1, d2, c, digit, d00, d10, _null = null,
-        t1 = s.length;
-      if (0 < t1 && s[0] === "-") {
+    Int64__parseRadix(s, radix, throwOnError) {
+      var i, negative, t1, d0, d1, d2, digit, d00, d10;
+      if (B.JSString_methods.startsWith$1(s, "-")) {
         i = 1;
         negative = true;
       } else {
         i = 0;
         negative = false;
       }
+      t1 = s.length;
       if (i >= t1)
-        throw A.wrapException(A.FormatException$("No digits in '" + s + "'", _null, _null));
+        throw A.wrapException(A.FormatException$("No digits", s, i));
       for (d0 = 0, d1 = 0, d2 = 0; i < t1; ++i, d1 = d10, d0 = d00) {
-        c = B.JSString_methods._codeUnitAt$1(s, i);
-        digit = A.Int32__decodeDigit(c);
-        if (digit < 0 || digit >= radix)
-          throw A.wrapException(A.FormatException$("Non-radix char code: " + c, _null, _null));
-        d0 = d0 * radix + digit;
-        d00 = d0 & 4194303;
-        d1 = d1 * radix + B.JSInt_methods._shrOtherPositive$1(d0, 22);
-        d10 = d1 & 4194303;
-        d2 = d2 * radix + (d1 >>> 22) & 1048575;
+        digit = A.decodeDigit(B.JSString_methods._codeUnitAt$1(s, i));
+        if (digit < radix) {
+          d0 = d0 * radix + digit;
+          d00 = d0 & 4194303;
+          d1 = d1 * radix + B.JSInt_methods._shrOtherPositive$1(d0, 22);
+          d10 = d1 & 4194303;
+          d2 = d2 * radix + (d1 >>> 22) & 1048575;
+        } else
+          throw A.wrapException(A.FormatException$("Not radix digit", s, i));
       }
       if (negative)
         return A.Int64__sub(0, 0, 0, d0, d1, d2);
@@ -8529,7 +8519,7 @@
         return value;
       else if (A._isInt(value))
         return A.Int64_Int64(value);
-      throw A.wrapException(A.ArgumentError$value(value, null, null));
+      throw A.wrapException(A.ArgumentError$value(value, "other", "not an int, Int32 or Int64"));
     },
     Int64__toRadixStringUnsigned(radix, d0, d1, d2, sign) {
       var d4, d3, fatRadix, chunk1, chunk2, chunk3, q, q0, q1, q2, q3, chunk10, residue;
@@ -9065,6 +9055,17 @@
       }
       throw "Unable to print message: " + String(string);
     },
+    decodeDigit(c) {
+      var letter,
+        digit = c ^ 48;
+      if (digit < 10)
+        return digit;
+      letter = (c | 32) - 97;
+      if (letter >= 0)
+        return letter + 10;
+      else
+        return 255;
+    },
     UuidUtil_mathRNG() {
       var i, t1,
         b = new Uint8Array(16),
@@ -21802,7 +21803,9 @@
       return this.serialize$3$specifiedType(serializers, int64, B.FullType_null_List_empty_false);
     },
     deserialize$3$specifiedType(serializers, serialized, specifiedType) {
-      return A.Int64__parseRadix(A._asString(serialized), 10);
+      var t1 = A.Int64__parseRadix(A._asString(serialized), 10, true);
+      t1.toString;
+      return t1;
     },
     deserialize$2(serializers, serialized) {
       return this.deserialize$3$specifiedType(serializers, serialized, B.FullType_null_List_empty_false);
@@ -26963,7 +26966,7 @@
     B.Type_Float64List_LB7 = A.typeLiteral("Float64List");
     B.Type_Int16List_uXf = A.typeLiteral("Int16List");
     B.Type_Int32List_O50 = A.typeLiteral("Int32List");
-    B.Type_Int64_gc6 = A.typeLiteral("Int64");
+    B.Type_Int64_ww8 = A.typeLiteral("Int64");
     B.Type_Int8List_ekJ = A.typeLiteral("Int8List");
     B.Type_JSObject_8k0 = A.typeLiteral("JSObject");
     B.Type_JsonObject_gyf = A.typeLiteral("JsonObject");
diff --git a/dwds/lib/src/version.dart b/dwds/lib/src/version.dart
index 378dae623..2f64088a5 100644
--- a/dwds/lib/src/version.dart
+++ b/dwds/lib/src/version.dart
@@ -1,2 +1,2 @@
 // Generated code. Do not modify.
-const packageVersion = '18.0.0-dev';
+const packageVersion = '18.0.0';
diff --git a/dwds/pubspec.yaml b/dwds/pubspec.yaml
index af0f93ec0..93e1ad902 100644
--- a/dwds/pubspec.yaml
+++ b/dwds/pubspec.yaml
@@ -1,6 +1,6 @@
 name: dwds
 # Every time this changes you need to run `dart run build_runner build`.
-version: 18.0.0-dev
+version: 18.0.0
 description: >-
   A service that proxies between the Chrome debug protocol and the Dart VM
   service protocol.

From f2f7329f8c2eb160c35b44276b3f01fe5c805988 Mon Sep 17 00:00:00 2001
From: Anna Gringauze <annagrin@google.com>
Date: Fri, 24 Feb 2023 12:08:23 -0800
Subject: [PATCH 2/5] Use dev channel to run publish

---
 .github/workflows/publish.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 91f6a69c4..58a6b56b6 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -11,4 +11,4 @@ on:
 jobs:
   publish:
     if: ${{ github.repository_owner == 'dart-lang' }}
-    uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main
+    uses: dart-lang/ecosystem/.github/workflows/publish.yaml@dev

From 5039b5e95c20c90326b50a2242b4ba87bd36050f Mon Sep 17 00:00:00 2001
From: Anna Gringauze <annagrin@google.com>
Date: Fri, 24 Feb 2023 16:11:39 -0800
Subject: [PATCH 3/5] Correctly switch to using dev SDK for publish task

---
 .github/workflows/publish.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 58a6b56b6..7f773dc2f 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -11,4 +11,6 @@ on:
 jobs:
   publish:
     if: ${{ github.repository_owner == 'dart-lang' }}
-    uses: dart-lang/ecosystem/.github/workflows/publish.yaml@dev
+    uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main
+    with:
+      sdk: dev

From b62f6c3e69d4be5bbc9e9fb57127243bdb82fa24 Mon Sep 17 00:00:00 2001
From: Anna Gringauze <annagrin@google.com>
Date: Mon, 27 Feb 2023 10:25:24 -0800
Subject: [PATCH 4/5] Try disabling publsh verification

---
 .github/workflows/publish.yaml | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 7f773dc2f..1aefdf28a 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -1,16 +1,16 @@
 # A CI configuration to auto-publish pub packages.
 
-name: Publish
+# name: Publish
 
-on:
-  pull_request:
-    branches: [ master ]
-  push:
-    tags: [ '[A-z]+-v[0-9]+.[0-9]+.[0-9]+*' ]
+# on:
+#   pull_request:
+#     branches: [ master ]
+#   push:
+#     tags: [ '[A-z]+-v[0-9]+.[0-9]+.[0-9]+*' ]
 
-jobs:
-  publish:
-    if: ${{ github.repository_owner == 'dart-lang' }}
-    uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main
-    with:
-      sdk: dev
+# jobs:
+#   publish:
+#     if: ${{ github.repository_owner == 'dart-lang' }}
+#     uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main
+#     with:
+#       sdk: dev

From f74aa98f52164d3184f14f64cc18278925d7f994 Mon Sep 17 00:00:00 2001
From: Anna Gringauze <annagrin@google.com>
Date: Mon, 27 Feb 2023 15:02:06 -0800
Subject: [PATCH 5/5] Merge with master

---
 dwds/lib/src/injected/client.js | 1062 +++++++++----------------------
 1 file changed, 299 insertions(+), 763 deletions(-)

diff --git a/dwds/lib/src/injected/client.js b/dwds/lib/src/injected/client.js
index 72916003d..652dad761 100644
--- a/dwds/lib/src/injected/client.js
+++ b/dwds/lib/src/injected/client.js
@@ -6861,13 +6861,11 @@
       this.$ti = t1;
     },
     CustomEvent_CustomEvent(type, detail) {
-      var e, t1, exception,
+      var e, exception,
         canBubble = true,
         cancelable = true;
       detail = detail;
-      t1 = document.createEvent("CustomEvent");
-      t1.toString;
-      e = type$.CustomEvent._as(t1);
+      e = type$.CustomEvent._as(document.createEvent("CustomEvent"));
       e._dartDetail = detail;
       if (type$.List_dynamic._is(detail) || type$.Map_dynamic_dynamic._is(detail) || typeof detail == "string" || typeof detail == "number")
         try {
@@ -6889,50 +6887,42 @@
       return type$.Element._as(t2.get$single(t2));
     },
     Element__safeTagName(element) {
-      var t1, exception,
+      var exception,
         result = "element tag unavailable";
       try {
-        t1 = element.tagName;
-        t1.toString;
-        result = t1;
+        result = element.tagName;
       } catch (exception) {
       }
       return result;
     },
     EventSource__factoryEventSource(url, eventSourceInitDict) {
       var t1 = new EventSource(url, A.convertDartToNative_Dictionary(eventSourceInitDict));
-      t1.toString;
       return t1;
     },
     HttpRequest_request(url, method, responseType, withCredentials) {
-      var t3, t4, t5,
+      var t2, t3, t4,
         t1 = new A._Future($.Zone__current, type$._Future_HttpRequest),
         completer = new A._AsyncCompleter(t1, type$._AsyncCompleter_HttpRequest),
-        t2 = new XMLHttpRequest();
-      t2.toString;
-      B.HttpRequest_methods.open$3$async(t2, method, url, true);
+        xhr = new XMLHttpRequest();
+      B.HttpRequest_methods.open$3$async(xhr, method, url, true);
       if (withCredentials != null)
-        B.HttpRequest_methods.set$withCredentials(t2, withCredentials);
+        B.HttpRequest_methods.set$withCredentials(xhr, withCredentials);
       if (responseType != null)
-        t2.responseType = responseType;
-      t3 = type$.nullable_void_Function_ProgressEvent;
-      t4 = t3._as(new A.HttpRequest_request_closure(t2, completer));
+        xhr.responseType = responseType;
+      t2 = type$.nullable_void_Function_ProgressEvent;
+      t3 = t2._as(new A.HttpRequest_request_closure(xhr, completer));
       type$.nullable_void_Function._as(null);
-      t5 = type$.ProgressEvent;
-      A._EventStreamSubscription$(t2, "load", t4, false, t5);
-      A._EventStreamSubscription$(t2, "error", t3._as(completer.get$completeError()), false, t5);
-      t2.send();
+      t4 = type$.ProgressEvent;
+      A._EventStreamSubscription$(xhr, "load", t3, false, t4);
+      A._EventStreamSubscription$(xhr, "error", t2._as(completer.get$completeError()), false, t4);
+      xhr.send();
       return t1;
     },
     ScriptElement___new_tearOff() {
-      var t1 = document.createElement("script");
-      t1.toString;
-      return t1;
+      return document.createElement("script");
     },
     WebSocket_WebSocket(url, protocols) {
-      var t1 = new WebSocket(url);
-      t1.toString;
-      return t1;
+      return new WebSocket(url);
     },
     _EventStreamSubscription$(_target, _eventType, onData, _useCapture, $T) {
       var t1 = onData == null ? null : A._wrapZone(new A._EventStreamSubscription_closure(onData), type$.Event);
@@ -6941,9 +6931,8 @@
       return t1;
     },
     _Html5NodeValidator$(uriPolicy) {
-      var t1 = document.createElement("a");
-      t1.toString;
-      t1 = new A._SameOriginUriPolicy(t1, type$.Location._as(window.location));
+      var e = document.createElement("a"),
+        t1 = new A._SameOriginUriPolicy(e, type$.Location._as(window.location));
       t1 = new A._Html5NodeValidator(t1);
       t1._Html5NodeValidator$1$uriPolicy(uriPolicy);
       return t1;
@@ -6956,7 +6945,7 @@
       return true;
     },
     _Html5NodeValidator__uriAttributeValidator(element, attributeName, value, context) {
-      var t1, t2, t3, t4, t5;
+      var t1, t2, t3;
       type$.Element._as(element);
       A._asString(attributeName);
       A._asString(value);
@@ -6965,20 +6954,7 @@
       B.AnchorElement_methods.set$href(t2, value);
       t3 = t2.hostname;
       t1 = t1._loc;
-      if (t3 == t1.hostname) {
-        t4 = t2.port;
-        t5 = t1.port;
-        t5.toString;
-        if (t4 === t5) {
-          t4 = t2.protocol;
-          t1 = t1.protocol;
-          t1.toString;
-          t1 = t4 === t1;
-        } else
-          t1 = false;
-      } else
-        t1 = false;
-      if (!t1)
+      if (!(t3 == t1.hostname && t2.port === t1.port && t2.protocol === t1.protocol))
         if (t3 === "")
           if (t2.port === "") {
             t1 = t2.protocol;
@@ -7006,9 +6982,7 @@
       return new A._AcceptStructuredCloneDart2Js([], []).convertNativeToDart_AcceptStructuredClone$2$mustCopy(o, true);
     },
     _DOMWindowCrossFrame__createSafe(w) {
-      var t1 = window;
-      t1.toString;
-      if (w === t1)
+      if (w === window)
         return type$.WindowBase._as(w);
       else
         return new A._DOMWindowCrossFrame();
@@ -7391,41 +7365,30 @@
     __StyleSheetList_JavaScriptObject_ListMixin_ImmutableListMixin: function __StyleSheetList_JavaScriptObject_ListMixin_ImmutableListMixin() {
     },
     _convertNativeToDart_Value(value) {
-      var t1, values, i;
+      var values, i;
       if (value == null)
         return value;
       if (typeof value == "string" || typeof value == "number" || A._isBool(value))
         return value;
       if (A.isJavaScriptSimpleObject(value))
         return A.convertNativeToDart_Dictionary(value);
-      t1 = Array.isArray(value);
-      t1.toString;
-      if (t1) {
+      if (Array.isArray(value)) {
         values = [];
-        i = 0;
-        while (true) {
-          t1 = value.length;
-          t1.toString;
-          if (!(i < t1))
-            break;
+        for (i = 0; i < value.length; ++i)
           values.push(A._convertNativeToDart_Value(value[i]));
-          ++i;
-        }
         return values;
       }
       return value;
     },
     convertNativeToDart_Dictionary(object) {
-      var dict, keys, t1, _i, key, t2;
+      var dict, keys, t1, _i, key;
       if (object == null)
         return null;
       dict = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.dynamic);
       keys = Object.getOwnPropertyNames(object);
       for (t1 = keys.length, _i = 0; _i < keys.length; keys.length === t1 || (0, A.throwConcurrentModificationError)(keys), ++_i) {
         key = keys[_i];
-        t2 = key;
-        t2.toString;
-        dict.$indexSet(0, t2, A._convertNativeToDart_Value(object[key]));
+        dict.$indexSet(0, key, A._convertNativeToDart_Value(object[key]));
       }
       return dict;
     },
@@ -7450,15 +7413,8 @@
       return object;
     },
     isJavaScriptSimpleObject(value) {
-      var proto = Object.getPrototypeOf(value),
-        t1 = proto === Object.prototype;
-      t1.toString;
-      if (!t1) {
-        t1 = proto === null;
-        t1.toString;
-      } else
-        t1 = true;
-      return t1;
+      var proto = Object.getPrototypeOf(value);
+      return proto === Object.prototype || proto === null;
     },
     _StructuredClone: function _StructuredClone() {
     },
@@ -8819,9 +8775,7 @@
       self.window.top.document.dispatchEvent(A.CustomEvent_CustomEvent("dart-app-ready", B.C_JsonCodec.encode$2$toEncodable(t1.serialize$1(t2._debug_info$_build$0()), null)));
     },
     _listenForDebugExtensionAuthRequest() {
-      var t1 = window;
-      t1.toString;
-      B.Window_methods.addEventListener$2(t1, "message", A.allowInterop(new A._listenForDebugExtensionAuthRequest_closure(), type$.dynamic_Function_Event));
+      B.Window_methods.addEventListener$2(window, "message", A.allowInterop(new A._listenForDebugExtensionAuthRequest_closure(), type$.dynamic_Function_Event));
     },
     _authenticateUser(authUrl) {
       var $async$goto = 0,
@@ -8851,10 +8805,8 @@
       return A._asyncStartSync($async$_authenticateUser, $async$completer);
     },
     _authUrl() {
-      var extensionUrl, authUrl,
-        t1 = window;
-      t1.toString;
-      extensionUrl = A._asStringQ(A.JsObject_JsObject$fromBrowserObject(t1).$index(0, "$dartExtensionUri"));
+      var authUrl,
+        extensionUrl = A._asStringQ(A.JsObject_JsObject$fromBrowserObject(window).$index(0, "$dartExtensionUri"));
       if (extensionUrl == null)
         return null;
       authUrl = A.Uri_parse(extensionUrl).replace$1$path(0, "$dwdsExtensionAuthentication");
@@ -8998,15 +8950,12 @@
       this.stackTrace = t1;
     },
     _findNonce() {
-      var t2, elements, t3, t4, nonceValue,
-        t1 = window.document;
-      t1.toString;
-      t2 = type$.Element;
+      var elements, t3, t4, nonceValue,
+        t1 = window.document,
+        t2 = type$.Element;
       A.checkTypeBound(t2, t2, "T", "querySelectorAll");
-      t1 = t1.querySelectorAll("script");
-      t1.toString;
       t2 = type$._FrozenElementList_Element;
-      elements = new A._FrozenElementList(t1, t2);
+      elements = new A._FrozenElementList(t1.querySelectorAll("script"), t2);
       for (t1 = new A.ListIterator(elements, elements.get$length(elements), t2._eval$1("ListIterator<ListMixin.E>")), t3 = type$.HtmlElement, t2 = t2._eval$1("ListMixin.E"); t1.moveNext$0();) {
         t4 = t1.__internal$_current;
         t4 = t3._as(t4 == null ? t2._as(t4) : t4);
@@ -9027,7 +8976,7 @@
       var scriptElement = $.$get$_createScript().call$0(),
         t1 = J.getInterceptor$x(scriptElement);
       t1.setInnerHtml$1(scriptElement, "window.$dartRunMain();");
-      document.body.appendChild(scriptElement).toString;
+      document.body.appendChild(scriptElement);
       A.Future_Future$microtask(t1.get$remove(scriptElement), type$.void);
     },
     _createScript_closure: function _createScript_closure() {
@@ -16769,17 +16718,13 @@
       receiver.href = value;
     },
     toString$0(receiver) {
-      var t1 = String(receiver);
-      t1.toString;
-      return t1;
+      return String(receiver);
     },
     $isAnchorElement: 1
   };
   A.AreaElement.prototype = {
     toString$0(receiver) {
-      var t1 = String(receiver);
-      t1.toString;
-      return t1;
+      return String(receiver);
     }
   };
   A.BaseElement.prototype = {$isBaseElement: 1};
@@ -16799,9 +16744,7 @@
   A.CssRule.prototype = {$isCssRule: 1};
   A.CssStyleDeclaration.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     }
   };
   A.CssStyleDeclarationBase.prototype = {};
@@ -16831,45 +16774,31 @@
   A.Document.prototype = {$isDocument: 1};
   A.DomException.prototype = {
     toString$0(receiver) {
-      var t1 = String(receiver);
-      t1.toString;
-      return t1;
+      return String(receiver);
     }
   };
   A.DomImplementation.prototype = {
     createHtmlDocument$1(receiver, title) {
-      var t1 = receiver.createHTMLDocument(title);
-      t1.toString;
-      return t1;
+      return receiver.createHTMLDocument(title);
     }
   };
   A.DomRectList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.Rectangle_num._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -16944,31 +16873,21 @@
   };
   A.DomStringList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       A._asString(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -16983,9 +16902,7 @@
   };
   A.DomTokenList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     }
   };
   A._FrozenElementList.prototype = {
@@ -17015,9 +16932,7 @@
       return new A._ElementAttributeMap(receiver);
     },
     toString$0(receiver) {
-      var t1 = receiver.localName;
-      t1.toString;
-      return t1;
+      return receiver.localName;
     },
     createFragment$3$treeSanitizer$validator(receiver, html, treeSanitizer, validator) {
       var t1, t2, contextElement, fragment;
@@ -17050,15 +16965,13 @@
         t2.toString;
         t2 = B.DomImplementation_methods.createHtmlDocument$1(t2, "");
         $.Element__parseDocument = t2;
-        t2 = t2.createRange();
-        t2.toString;
-        $.Element__parseRange = t2;
+        $.Element__parseRange = t2.createRange();
         t2 = $.Element__parseDocument.createElement("base");
         type$.BaseElement._as(t2);
         t1 = t1.baseURI;
         t1.toString;
         t2.href = t1;
-        $.Element__parseDocument.head.appendChild(t2).toString;
+        $.Element__parseDocument.head.appendChild(t2);
       }
       t1 = $.Element__parseDocument;
       if (t1.body == null) {
@@ -17072,37 +16985,23 @@
         contextElement = t1;
       } else {
         t1.toString;
-        t2 = receiver.tagName;
-        t2.toString;
-        contextElement = t1.createElement(t2);
-        $.Element__parseDocument.body.appendChild(contextElement).toString;
+        contextElement = t1.createElement(receiver.tagName);
+        $.Element__parseDocument.body.appendChild(contextElement);
       }
-      t1 = "createContextualFragment" in window.Range.prototype;
-      t1.toString;
-      if (t1) {
-        t1 = receiver.tagName;
-        t1.toString;
-        t1 = !B.JSArray_methods.contains$1(B.List_ME0, t1);
-      } else
-        t1 = false;
-      if (t1) {
+      if ("createContextualFragment" in window.Range.prototype && !B.JSArray_methods.contains$1(B.List_ME0, receiver.tagName)) {
         $.Element__parseRange.selectNodeContents(contextElement);
         t1 = $.Element__parseRange;
-        t1 = t1.createContextualFragment(html);
-        t1.toString;
-        fragment = t1;
+        fragment = t1.createContextualFragment(html);
       } else {
         J.set$_innerHtml$x(contextElement, html);
-        t1 = $.Element__parseDocument.createDocumentFragment();
-        t1.toString;
-        for (; t2 = contextElement.firstChild, t2 != null;)
-          t1.appendChild(t2).toString;
-        fragment = t1;
+        fragment = $.Element__parseDocument.createDocumentFragment();
+        for (; t1 = contextElement.firstChild, t1 != null;)
+          fragment.appendChild(t1);
       }
       if (contextElement !== $.Element__parseDocument.body)
         J.remove$0$x(contextElement);
       treeSanitizer.sanitizeTree$1(fragment);
-      document.adoptNode(fragment).toString;
+      document.adoptNode(fragment);
       return fragment;
     },
     createFragment$2$treeSanitizer($receiver, html, treeSanitizer) {
@@ -17110,7 +17009,7 @@
     },
     setInnerHtml$1(receiver, html) {
       this.set$text(receiver, null);
-      receiver.appendChild(this.createFragment$3$treeSanitizer$validator(receiver, html, null, null)).toString;
+      receiver.appendChild(this.createFragment$3$treeSanitizer$validator(receiver, html, null, null));
     },
     set$_innerHtml(receiver, value) {
       receiver.innerHTML = value;
@@ -17145,31 +17044,21 @@
   A.File.prototype = {$isFile: 1};
   A.FileList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.File._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17196,38 +17085,26 @@
   A.Gamepad.prototype = {$isGamepad: 1};
   A.History.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     }
   };
   A.HtmlCollection.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.Node._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17277,24 +17154,12 @@
   A.KeyboardEvent.prototype = {$isKeyboardEvent: 1};
   A.Location.prototype = {
     get$origin(receiver) {
-      var t2,
-        t1 = "origin" in receiver;
-      t1.toString;
-      if (t1) {
-        t1 = receiver.origin;
-        t1.toString;
-        return t1;
-      }
-      t1 = receiver.protocol;
-      t1.toString;
-      t2 = receiver.host;
-      t2.toString;
-      return t1 + "//" + t2;
+      if ("origin" in receiver)
+        return receiver.origin;
+      return receiver.protocol + "//" + receiver.host;
     },
     toString$0(receiver) {
-      var t1 = String(receiver);
-      t1.toString;
-      return t1;
+      return String(receiver);
     },
     $isLocation: 1
   };
@@ -17313,18 +17178,14 @@
       return A.convertNativeToDart_Dictionary(receiver.get(A._asString(key)));
     },
     forEach$1(receiver, f) {
-      var entries, entry, t1;
+      var entries, entry;
       type$.void_Function_String_dynamic._as(f);
       entries = receiver.entries();
       for (; true;) {
         entry = entries.next();
-        t1 = entry.done;
-        t1.toString;
-        if (t1)
+        if (entry.done)
           return;
-        t1 = entry.value[0];
-        t1.toString;
-        f.call$2(t1, A.convertNativeToDart_Dictionary(entry.value[1]));
+        f.call$2(entry.value[0], A.convertNativeToDart_Dictionary(entry.value[1]));
       }
     },
     get$keys(receiver) {
@@ -17333,14 +17194,10 @@
       return keys;
     },
     get$length(receiver) {
-      var t1 = receiver.size;
-      t1.toString;
-      return t1;
+      return receiver.size;
     },
     get$isEmpty(receiver) {
-      var t1 = receiver.size;
-      t1.toString;
-      return t1 === 0;
+      return receiver.size === 0;
     },
     $indexSet(receiver, key, value) {
       A._asString(key);
@@ -17362,18 +17219,14 @@
       return A.convertNativeToDart_Dictionary(receiver.get(A._asString(key)));
     },
     forEach$1(receiver, f) {
-      var entries, entry, t1;
+      var entries, entry;
       type$.void_Function_String_dynamic._as(f);
       entries = receiver.entries();
       for (; true;) {
         entry = entries.next();
-        t1 = entry.done;
-        t1.toString;
-        if (t1)
+        if (entry.done)
           return;
-        t1 = entry.value[0];
-        t1.toString;
-        f.call$2(t1, A.convertNativeToDart_Dictionary(entry.value[1]));
+        f.call$2(entry.value[0], A.convertNativeToDart_Dictionary(entry.value[1]));
       }
     },
     get$keys(receiver) {
@@ -17382,14 +17235,10 @@
       return keys;
     },
     get$length(receiver) {
-      var t1 = receiver.size;
-      t1.toString;
-      return t1;
+      return receiver.size;
     },
     get$isEmpty(receiver) {
-      var t1 = receiver.size;
-      t1.toString;
-      return t1 === 0;
+      return receiver.size === 0;
     },
     $indexSet(receiver, key, value) {
       A._asString(key);
@@ -17406,31 +17255,21 @@
   A.MimeType.prototype = {$isMimeType: 1};
   A.MimeTypeArray.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.MimeType._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17471,12 +17310,12 @@
           for (len = t1.childNodes.length, i = 0; i < len; ++i) {
             t3 = t1.firstChild;
             t3.toString;
-            t2.appendChild(t3).toString;
+            t2.appendChild(t3);
           }
         return;
       }
       for (t1 = iterable.get$iterator(iterable), t2 = this._this; t1.moveNext$0();)
-        t2.appendChild(t1.get$current(t1)).toString;
+        t2.appendChild(t1.get$current(t1));
     },
     $indexSet(_, index, value) {
       var t1, t2;
@@ -17485,7 +17324,7 @@
       t2 = t1.childNodes;
       if (!(index >= 0 && index < t2.length))
         return A.ioore(t2, index);
-      t1.replaceChild(value, t2[index]).toString;
+      t1.replaceChild(value, t2[index]);
     },
     get$iterator(_) {
       var t1 = this._this.childNodes;
@@ -17509,12 +17348,12 @@
     remove$0(receiver) {
       var t1 = receiver.parentNode;
       if (t1 != null)
-        t1.removeChild(receiver).toString;
+        t1.removeChild(receiver);
     },
     _clearChildren$0(receiver) {
       var t1;
       for (; t1 = receiver.firstChild, t1 != null;)
-        receiver.removeChild(t1).toString;
+        receiver.removeChild(t1);
     },
     toString$0(receiver) {
       var value = receiver.nodeValue;
@@ -17527,31 +17366,21 @@
   };
   A.NodeList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.Node._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17572,31 +17401,21 @@
   };
   A.PluginArray.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.Plugin._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17618,18 +17437,14 @@
       return A.convertNativeToDart_Dictionary(receiver.get(A._asString(key)));
     },
     forEach$1(receiver, f) {
-      var entries, entry, t1;
+      var entries, entry;
       type$.void_Function_String_dynamic._as(f);
       entries = receiver.entries();
       for (; true;) {
         entry = entries.next();
-        t1 = entry.done;
-        t1.toString;
-        if (t1)
+        if (entry.done)
           return;
-        t1 = entry.value[0];
-        t1.toString;
-        f.call$2(t1, A.convertNativeToDart_Dictionary(entry.value[1]));
+        f.call$2(entry.value[0], A.convertNativeToDart_Dictionary(entry.value[1]));
       }
     },
     get$keys(receiver) {
@@ -17638,14 +17453,10 @@
       return keys;
     },
     get$length(receiver) {
-      var t1 = receiver.size;
-      t1.toString;
-      return t1;
+      return receiver.size;
     },
     get$isEmpty(receiver) {
-      var t1 = receiver.size;
-      t1.toString;
-      return t1 === 0;
+      return receiver.size === 0;
     },
     $indexSet(receiver, key, value) {
       A._asString(key);
@@ -17669,31 +17480,21 @@
   A.SourceBuffer.prototype = {$isSourceBuffer: 1};
   A.SourceBufferList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.SourceBuffer._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17709,31 +17510,21 @@
   A.SpeechGrammar.prototype = {$isSpeechGrammar: 1};
   A.SpeechGrammarList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.SpeechGrammar._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17780,9 +17571,7 @@
       return keys;
     },
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     get$isEmpty(receiver) {
       return receiver.key(0) == null;
@@ -17798,51 +17587,38 @@
   A.StyleSheet.prototype = {$isStyleSheet: 1};
   A.TableElement.prototype = {
     createFragment$3$treeSanitizer$validator(receiver, html, treeSanitizer, validator) {
-      var table,
-        t1 = "createContextualFragment" in window.Range.prototype;
-      t1.toString;
-      if (t1)
+      var table, fragment;
+      if ("createContextualFragment" in window.Range.prototype)
         return this.super$Element$createFragment(receiver, html, treeSanitizer, validator);
       table = A.Element_Element$html("<table>" + html + "</table>", treeSanitizer, validator);
-      t1 = document.createDocumentFragment();
-      t1.toString;
-      new A._ChildNodeListLazy(t1).addAll$1(0, new A._ChildNodeListLazy(table));
-      return t1;
+      fragment = document.createDocumentFragment();
+      new A._ChildNodeListLazy(fragment).addAll$1(0, new A._ChildNodeListLazy(table));
+      return fragment;
     }
   };
   A.TableRowElement.prototype = {
     createFragment$3$treeSanitizer$validator(receiver, html, treeSanitizer, validator) {
-      var t2,
-        t1 = "createContextualFragment" in window.Range.prototype;
-      t1.toString;
-      if (t1)
+      var t1, fragment;
+      if ("createContextualFragment" in window.Range.prototype)
         return this.super$Element$createFragment(receiver, html, treeSanitizer, validator);
       t1 = document;
-      t2 = t1.createDocumentFragment();
-      t2.toString;
-      t1 = t1.createElement("table");
-      t1.toString;
-      t1 = new A._ChildNodeListLazy(B.TableElement_methods.createFragment$3$treeSanitizer$validator(t1, html, treeSanitizer, validator));
+      fragment = t1.createDocumentFragment();
+      t1 = new A._ChildNodeListLazy(B.TableElement_methods.createFragment$3$treeSanitizer$validator(t1.createElement("table"), html, treeSanitizer, validator));
       t1 = new A._ChildNodeListLazy(t1.get$single(t1));
-      new A._ChildNodeListLazy(t2).addAll$1(0, new A._ChildNodeListLazy(t1.get$single(t1)));
-      return t2;
+      new A._ChildNodeListLazy(fragment).addAll$1(0, new A._ChildNodeListLazy(t1.get$single(t1)));
+      return fragment;
     }
   };
   A.TableSectionElement.prototype = {
     createFragment$3$treeSanitizer$validator(receiver, html, treeSanitizer, validator) {
-      var t2,
-        t1 = "createContextualFragment" in window.Range.prototype;
-      t1.toString;
-      if (t1)
+      var t1, fragment;
+      if ("createContextualFragment" in window.Range.prototype)
         return this.super$Element$createFragment(receiver, html, treeSanitizer, validator);
       t1 = document;
-      t2 = t1.createDocumentFragment();
-      t2.toString;
-      t1 = t1.createElement("table");
-      t1.toString;
-      t1 = new A._ChildNodeListLazy(B.TableElement_methods.createFragment$3$treeSanitizer$validator(t1, html, treeSanitizer, validator));
-      new A._ChildNodeListLazy(t2).addAll$1(0, new A._ChildNodeListLazy(t1.get$single(t1)));
-      return t2;
+      fragment = t1.createDocumentFragment();
+      t1 = new A._ChildNodeListLazy(B.TableElement_methods.createFragment$3$treeSanitizer$validator(t1.createElement("table"), html, treeSanitizer, validator));
+      new A._ChildNodeListLazy(fragment).addAll$1(0, new A._ChildNodeListLazy(t1.get$single(t1)));
+      return fragment;
     }
   };
   A.TemplateElement.prototype = {
@@ -17853,7 +17629,7 @@
       t1.toString;
       J._clearChildren$0$x(t1);
       fragment = this.createFragment$3$treeSanitizer$validator(receiver, html, null, null);
-      receiver.content.appendChild(fragment).toString;
+      receiver.content.appendChild(fragment);
     },
     $isTemplateElement: 1
   };
@@ -17861,31 +17637,21 @@
   A.TextTrackCue.prototype = {$isTextTrackCue: 1};
   A.TextTrackCueList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.TextTrackCue._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17900,31 +17666,21 @@
   };
   A.TextTrackList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.TextTrack._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17939,39 +17695,27 @@
   };
   A.TimeRanges.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     }
   };
   A.Touch.prototype = {$isTouch: 1};
   A.TouchList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.Touch._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -17992,9 +17736,7 @@
   A.UIEvent.prototype = {};
   A.Url.prototype = {
     toString$0(receiver) {
-      var t1 = String(receiver);
-      t1.toString;
-      return t1;
+      return String(receiver);
     }
   };
   A.VideoTrackList.prototype = {
@@ -18020,9 +17762,7 @@
       return receiver.alert(message);
     },
     confirm$1(receiver, message) {
-      var t1 = receiver.confirm(message);
-      t1.toString;
-      return t1;
+      return receiver.confirm(message);
     },
     $isWindow: 1,
     $isWindowBase: 1
@@ -18031,31 +17771,21 @@
   A._Attr.prototype = {$is_Attr: 1};
   A._CssRuleList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.CssRule._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -18145,15 +17875,11 @@
   };
   A._GamepadList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
       return receiver[index];
     },
@@ -18178,31 +17904,21 @@
   };
   A._NamedNodeMap.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.Node._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -18217,31 +17933,21 @@
   };
   A._SpeechRecognitionResultList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.SpeechRecognitionResult._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -18256,31 +17962,21 @@
   };
   A._StyleSheetList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length,
-        t2 = index >>> 0 !== index || index >= t1;
-      t2.toString;
-      if (t2)
+      var t1 = receiver.length;
+      if (index >>> 0 !== index || index >= t1)
         throw A.wrapException(A.IndexError$withLength(index, t1, receiver, null, null));
-      t1 = receiver[index];
-      t1.toString;
-      return t1;
+      return receiver[index];
     },
     $indexSet(receiver, index, value) {
       type$.StyleSheet._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1;
-      if (receiver.length > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -18331,7 +18027,6 @@
   A._ElementAttributeMap.prototype = {
     containsKey$1(_, key) {
       var t1 = this._element.hasAttribute(key);
-      t1.toString;
       return t1;
     },
     $index(_, key) {
@@ -18604,17 +18299,17 @@
       if ($parent == null || $parent !== node.parentNode)
         J.remove$0$x(node);
       else
-        $parent.removeChild(node).toString;
+        $parent.removeChild(node);
     },
     _sanitizeUntrustedElement$2(element, $parent) {
-      var corruptedTest1, elementText, elementTagName, t1, corrupted0, exception, t2,
+      var corruptedTest1, elementText, elementTagName, exception, t1,
         corrupted = true,
         attrs = null, isAttr = null;
       try {
         attrs = J.get$attributes$x(element);
         isAttr = attrs._element.getAttribute("is");
         type$.Element._as(element);
-        t1 = function(element) {
+        corruptedTest1 = function(element) {
           if (!(element.attributes instanceof NamedNodeMap))
             return true;
           if (element.id == "lastChild" || element.name == "lastChild" || element.id == "previousSibling" || element.name == "previousSibling" || element.id == "children" || element.name == "children")
@@ -18635,16 +18330,7 @@
           }
           return false;
         }(element);
-        t1.toString;
-        corruptedTest1 = t1;
-        if (A.boolConversionCheck(corruptedTest1))
-          corrupted0 = true;
-        else {
-          t1 = !(element.attributes instanceof NamedNodeMap);
-          t1.toString;
-          corrupted0 = t1;
-        }
-        corrupted = corrupted0;
+        corrupted = A.boolConversionCheck(corruptedTest1) ? true : !(element.attributes instanceof NamedNodeMap);
       } catch (exception) {
       }
       elementText = "element unprintable";
@@ -18660,43 +18346,35 @@
           throw exception;
         else {
           this._removeNode$2(element, $parent);
-          window.toString;
+          window;
           t1 = A.S(elementText);
-          t2 = typeof console != "undefined";
-          t2.toString;
-          if (t2)
+          if (typeof console != "undefined")
             window.console.warn("Removing corrupted element " + t1);
         }
       }
     },
     _sanitizeElement$7(element, $parent, corrupted, text, tag, attrs, isAttr) {
-      var t1, t2, keys, i, $name, t3, t4, _this = this;
+      var t1, keys, i, t2, $name, t3, t4, _this = this;
       if (corrupted) {
         _this._removeNode$2(element, $parent);
-        window.toString;
-        t1 = typeof console != "undefined";
-        t1.toString;
-        if (t1)
+        window;
+        if (typeof console != "undefined")
           window.console.warn("Removing element due to corrupted attributes on <" + text + ">");
         return;
       }
       if (!_this.validator.allowsElement$1(element)) {
         _this._removeNode$2(element, $parent);
-        window.toString;
+        window;
         t1 = A.S($parent);
-        t2 = typeof console != "undefined";
-        t2.toString;
-        if (t2)
+        if (typeof console != "undefined")
           window.console.warn("Removing disallowed element <" + tag + "> from " + t1);
         return;
       }
       if (isAttr != null)
         if (!_this.validator.allowsAttribute$3(element, "is", isAttr)) {
           _this._removeNode$2(element, $parent);
-          window.toString;
-          t1 = typeof console != "undefined";
-          t1.toString;
-          if (t1)
+          window;
+          if (typeof console != "undefined")
             window.console.warn("Removing disallowed type extension <" + tag + ' is="' + isAttr + '">');
           return;
         }
@@ -18710,11 +18388,9 @@
         t4 = J.toLowerCase$0$s($name);
         A._asString($name);
         if (!t3.allowsAttribute$3(element, t4, A._asString(t1.getAttribute($name)))) {
-          window.toString;
+          window;
           t3 = t1.getAttribute($name);
-          t4 = typeof console != "undefined";
-          t4.toString;
-          if (t4)
+          if (typeof console != "undefined")
             window.console.warn(t2 + $name + '="' + A.S(t3) + '">');
           t1.removeAttribute($name);
         }
@@ -18729,11 +18405,9 @@
   };
   A._ValidatingTreeSanitizer_sanitizeTree_walk.prototype = {
     call$2(node, $parent) {
-      var child, nextChild, t3, t4, exception,
-        t1 = this.$this,
-        t2 = node.nodeType;
-      t2.toString;
-      switch (t2) {
+      var child, nextChild, t2, t3, t4, exception,
+        t1 = this.$this;
+      switch (node.nodeType) {
         case 1:
           t1._sanitizeUntrustedElement$2(node, $parent);
           break;
@@ -18767,9 +18441,9 @@
           t4 = t3.parentNode;
           if (node !== t4) {
             if (t4 != null)
-              t4.removeChild(t3).toString;
+              t4.removeChild(t3);
           } else
-            node.removeChild(t3).toString;
+            node.removeChild(t3);
           child = null;
           nextChild = node.lastChild;
         }
@@ -18832,7 +18506,7 @@
       return $length;
     },
     walk$1(e) {
-      var slot, t2, copy, t3, _this = this, t1 = {};
+      var slot, t2, copy, _this = this, t1 = {};
       if (e == null)
         return e;
       if (A._isBool(e))
@@ -18887,10 +18561,9 @@
         copy = t1.copy = t2[slot];
         if (copy != null)
           return copy;
-        t3 = {};
-        t3.toString;
-        t1.copy = t3;
-        B.JSArray_methods.$indexSet(t2, slot, t3);
+        copy = {};
+        t1.copy = copy;
+        B.JSArray_methods.$indexSet(t2, slot, copy);
         _this.forEachObjectKey$2(e, new A._StructuredClone_walk_closure0(t1, _this));
         return t1.copy;
       }
@@ -18900,12 +18573,11 @@
       var i,
         t1 = J.getInterceptor$asx(e),
         $length = t1.get$length(e),
-        t2 = new Array($length);
-      t2.toString;
-      B.JSArray_methods.$indexSet(this.copies, slot, t2);
+        copy = new Array($length);
+      B.JSArray_methods.$indexSet(this.copies, slot, copy);
       for (i = 0; i < $length; ++i)
-        B.JSArray_methods.$indexSet(t2, i, this.walk$1(t1.$index(e, i)));
-      return t2;
+        B.JSArray_methods.$indexSet(copy, i, this.walk$1(t1.$index(e, i)));
+      return copy;
     }
   };
   A._StructuredClone_walk_closure.prototype = {
@@ -18933,7 +18605,7 @@
       return $length;
     },
     walk$1(e) {
-      var t1, slot, copy, t2, map, t3, $length, t4, i, _this = this;
+      var slot, t1, copy, t2, map, l, $length, i, _this = this;
       if (e == null)
         return e;
       if (A._isBool(e))
@@ -18942,20 +18614,11 @@
         return e;
       if (typeof e == "string")
         return e;
-      t1 = e instanceof Date;
-      t1.toString;
-      if (t1) {
-        t1 = e.getTime();
-        t1.toString;
-        return A.DateTime$fromMillisecondsSinceEpoch(t1, true);
-      }
-      t1 = e instanceof RegExp;
-      t1.toString;
-      if (t1)
+      if (e instanceof Date)
+        return A.DateTime$fromMillisecondsSinceEpoch(e.getTime(), true);
+      if (e instanceof RegExp)
         throw A.wrapException(A.UnimplementedError$("structured clone of RegExp"));
-      t1 = typeof Promise != "undefined" && e instanceof Promise;
-      t1.toString;
-      if (t1)
+      if (typeof Promise != "undefined" && e instanceof Promise)
         return A.promiseToFuture(e, type$.dynamic);
       if (A.isJavaScriptSimpleObject(e)) {
         slot = _this.findSlot$1(e);
@@ -18971,29 +18634,21 @@
         _this.forEachJsField$2(e, new A._AcceptStructuredClone_walk_closure(_this, map));
         return map;
       }
-      t1 = e instanceof Array;
-      t1.toString;
-      if (t1) {
-        t1 = e;
-        t1.toString;
-        slot = _this.findSlot$1(t1);
-        t2 = _this.copies;
-        if (!(slot < t2.length))
-          return A.ioore(t2, slot);
-        copy = t2[slot];
+      if (e instanceof Array) {
+        l = e;
+        slot = _this.findSlot$1(l);
+        t1 = _this.copies;
+        if (!(slot < t1.length))
+          return A.ioore(t1, slot);
+        copy = t1[slot];
         if (copy != null)
           return copy;
-        t3 = J.getInterceptor$asx(t1);
-        $length = t3.get$length(t1);
-        if (_this.mustCopy) {
-          t4 = new Array($length);
-          t4.toString;
-          copy = t4;
-        } else
-          copy = t1;
-        B.JSArray_methods.$indexSet(t2, slot, copy);
-        for (t2 = J.getInterceptor$ax(copy), i = 0; i < $length; ++i)
-          t2.$indexSet(copy, i, _this.walk$1(t3.$index(t1, i)));
+        t2 = J.getInterceptor$asx(l);
+        $length = t2.get$length(l);
+        copy = _this.mustCopy ? new Array($length) : l;
+        B.JSArray_methods.$indexSet(t1, slot, copy);
+        for (t1 = J.getInterceptor$ax(copy), i = 0; i < $length; ++i)
+          t1.$indexSet(copy, i, _this.walk$1(t2.$index(l, i)));
         return copy;
       }
       return e;
@@ -19027,7 +18682,7 @@
     forEachObjectKey$2(object, action) {
       var t1, t2, _i, key;
       type$.dynamic_Function_dynamic_dynamic._as(action);
-      for (t1 = Object.keys(object), t2 = t1.length, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+      for (t1 = Object.keys(object), t2 = t1.length, _i = 0; _i < t2; ++_i) {
         key = t1[_i];
         action.call$2(key, object[key]);
       }
@@ -19284,33 +18939,20 @@
   A.Length.prototype = {$isLength: 1};
   A.LengthList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length;
-      t1.toString;
-      t1 = index >>> 0 !== index || index >= t1;
-      t1.toString;
-      if (t1)
+      if (index >>> 0 !== index || index >= receiver.length)
         throw A.wrapException(A.IndexError$withLength(index, this.get$length(receiver), receiver, null, null));
-      t1 = receiver.getItem(index);
-      t1.toString;
-      return t1;
+      return receiver.getItem(index);
     },
     $indexSet(receiver, index, value) {
       type$.Length._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      if (t1 > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -19323,33 +18965,20 @@
   A.Number.prototype = {$isNumber: 1};
   A.NumberList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length;
-      t1.toString;
-      t1 = index >>> 0 !== index || index >= t1;
-      t1.toString;
-      if (t1)
+      if (index >>> 0 !== index || index >= receiver.length)
         throw A.wrapException(A.IndexError$withLength(index, this.get$length(receiver), receiver, null, null));
-      t1 = receiver.getItem(index);
-      t1.toString;
-      return t1;
+      return receiver.getItem(index);
     },
     $indexSet(receiver, index, value) {
       type$.Number._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      if (t1 > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -19367,33 +18996,20 @@
   A.ScriptElement0.prototype = {$isScriptElement0: 1};
   A.StringList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length;
-      t1.toString;
-      t1 = index >>> 0 !== index || index >= t1;
-      t1.toString;
-      if (t1)
+      if (index >>> 0 !== index || index >= receiver.length)
         throw A.wrapException(A.IndexError$withLength(index, this.get$length(receiver), receiver, null, null));
-      t1 = receiver.getItem(index);
-      t1.toString;
-      return t1;
+      return receiver.getItem(index);
     },
     $indexSet(receiver, index, value) {
       A._asString(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      if (t1 > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -19405,7 +19021,7 @@
   };
   A.SvgElement.prototype = {
     createFragment$3$treeSanitizer$validator(receiver, svg, treeSanitizer, validator) {
-      var t2, fragment, root,
+      var t2, fragment, svgFragment, root,
         t1 = A._setArrayType([], type$.JSArray_NodeValidator);
       B.JSArray_methods.add$1(t1, A._Html5NodeValidator$(null));
       B.JSArray_methods.add$1(t1, A._TemplatingNodeValidator$());
@@ -19415,46 +19031,32 @@
       t2 = t1.body;
       t2.toString;
       fragment = B.BodyElement_methods.createFragment$2$treeSanitizer(t2, '<svg version="1.1">' + svg + "</svg>", treeSanitizer);
-      t1 = t1.createDocumentFragment();
-      t1.toString;
-      t2 = new A._ChildNodeListLazy(fragment);
-      root = t2.get$single(t2);
-      for (; t2 = root.firstChild, t2 != null;)
-        t1.appendChild(t2).toString;
-      return t1;
+      svgFragment = t1.createDocumentFragment();
+      t1 = new A._ChildNodeListLazy(fragment);
+      root = t1.get$single(t1);
+      for (; t1 = root.firstChild, t1 != null;)
+        svgFragment.appendChild(t1);
+      return svgFragment;
     },
     $isSvgElement: 1
   };
   A.Transform.prototype = {$isTransform: 1};
   A.TransformList.prototype = {
     get$length(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      return t1;
+      return receiver.length;
     },
     $index(receiver, index) {
-      var t1 = receiver.length;
-      t1.toString;
-      t1 = index >>> 0 !== index || index >= t1;
-      t1.toString;
-      if (t1)
+      if (index >>> 0 !== index || index >= receiver.length)
         throw A.wrapException(A.IndexError$withLength(index, this.get$length(receiver), receiver, null, null));
-      t1 = receiver.getItem(index);
-      t1.toString;
-      return t1;
+      return receiver.getItem(index);
     },
     $indexSet(receiver, index, value) {
       type$.Transform._as(value);
       throw A.wrapException(A.UnsupportedError$("Cannot assign element of immutable List."));
     },
     get$first(receiver) {
-      var t1 = receiver.length;
-      t1.toString;
-      if (t1 > 0) {
-        t1 = receiver[0];
-        t1.toString;
-        return t1;
-      }
+      if (receiver.length > 0)
+        return receiver[0];
       throw A.wrapException(A.StateError$("No elements"));
     },
     elementAt$1(receiver, index) {
@@ -19485,18 +19087,14 @@
       return A.convertNativeToDart_Dictionary(receiver.get(A._asString(key)));
     },
     forEach$1(receiver, f) {
-      var entries, entry, t1;
+      var entries, entry;
       type$.void_Function_String_dynamic._as(f);
       entries = receiver.entries();
       for (; true;) {
         entry = entries.next();
-        t1 = entry.done;
-        t1.toString;
-        if (t1)
+        if (entry.done)
           return;
-        t1 = entry.value[0];
-        t1.toString;
-        f.call$2(t1, A.convertNativeToDart_Dictionary(entry.value[1]));
+        f.call$2(entry.value[0], A.convertNativeToDart_Dictionary(entry.value[1]));
       }
     },
     get$keys(receiver) {
@@ -19505,14 +19103,10 @@
       return keys;
     },
     get$length(receiver) {
-      var t1 = receiver.size;
-      t1.toString;
-      return t1;
+      return receiver.size;
     },
     get$isEmpty(receiver) {
-      var t1 = receiver.size;
-      t1.toString;
-      return t1 === 0;
+      return receiver.size === 0;
     },
     $indexSet(receiver, key, value) {
       A._asString(key);
@@ -25043,7 +24637,6 @@
         t1 = _this.__HtmlWebSocketChannel__readyCompleter_A = new A._AsyncCompleter(new A._Future($.Zone__current, type$._Future_void), type$._AsyncCompleter_void),
         t2 = _this.innerWebSocket,
         t3 = t2.readyState;
-      t3.toString;
       if (t3 === 1) {
         t1.complete$0(0);
         _this._listen$0();
@@ -25148,7 +24741,7 @@
     call$0() {
       var $async$goto = 0,
         $async$completer = A._makeAsyncAwaitCompleter(type$.void),
-        uri, t1, t2, fixedPath, fixedUri, client, restarter, manager, t3, debugEventController, t4, t5;
+        uri, t1, fixedPath, fixedUri, client, restarter, manager, t2, t3, debugEventController, t4, t5;
       var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
         if ($async$errorCode === 1)
           return A._asyncRethrow($async$result, $async$completer);
@@ -25160,16 +24753,10 @@
                 self.$dartAppInstanceId = B.C_Uuid.v1$0();
               uri = A.Uri_parse(self.$dwdsDevHandlerPath);
               t1 = type$.Location;
-              t2 = t1._as(window.location).protocol;
-              t2.toString;
-              if (t2 === "https:" && uri.get$scheme() === "http" && uri.get$host(uri) !== "localhost")
+              if (t1._as(window.location).protocol === "https:" && uri.get$scheme() === "http" && uri.get$host(uri) !== "localhost")
                 uri = uri.replace$1$scheme(0, "https");
-              else {
-                t1 = t1._as(window.location).protocol;
-                t1.toString;
-                if (t1 === "wss:" && uri.get$scheme() === "ws" && uri.get$host(uri) !== "localhost")
-                  uri = uri.replace$1$scheme(0, "wss");
-              }
+              else if (t1._as(window.location).protocol === "wss:" && uri.get$scheme() === "ws" && uri.get$host(uri) !== "localhost")
+                uri = uri.replace$1$scheme(0, "wss");
               fixedPath = uri.toString$0(0);
               fixedUri = A.Uri_parse(fixedPath);
               client = fixedUri.isScheme$1("ws") || fixedUri.isScheme$1("wss") ? new A.WebSocketClient(A.HtmlWebSocketChannel$connect(fixedUri, null)) : new A.SseSocketClient(A.SseClient$(fixedPath, "InjectedClient"));
@@ -25211,14 +24798,11 @@
               client.get$stream(client).listen$2$onError(new A.main__closure4(manager), new A.main__closure5());
               if (A.boolConversionCheck(self.$dwdsEnableDevtoolsLaunch)) {
                 t1 = window;
-                t1.toString;
                 t2 = type$.nullable_void_Function_KeyboardEvent._as(new A.main__closure6());
                 type$.nullable_void_Function._as(null);
                 A._EventStreamSubscription$(t1, "keydown", t2, false, type$.KeyboardEvent);
               }
-              t1 = window.navigator.vendor;
-              t1.toString;
-              if (B.JSString_methods.contains$1(t1, "Google")) {
+              if (B.JSString_methods.contains$1(window.navigator.vendor, "Google")) {
                 t1 = client.get$sink();
                 t2 = $.$get$serializers();
                 t3 = new A.ConnectRequestBuilder();
@@ -25311,13 +24895,9 @@
   };
   A.main__closure3.prototype = {
     call$0() {
-      var t2, t3,
-        t1 = window.navigator.vendor;
-      t1.toString;
-      if (!B.JSString_methods.contains$1(t1, "Google")) {
-        t1 = window;
-        t1.toString;
-        B.Window_methods.alert$1(t1, "Dart DevTools is only supported on Chromium based browsers.");
+      var t1, t2, t3;
+      if (!B.JSString_methods.contains$1(window.navigator.vendor, "Google")) {
+        B.Window_methods.alert$1(window, "Dart DevTools is only supported on Chromium based browsers.");
         return;
       }
       t1 = this.client.get$sink();
@@ -25345,7 +24925,7 @@
     $call$body$main__closure(serialized) {
       var $async$goto = 0,
         $async$completer = A._makeAsyncAwaitCompleter(type$.void),
-        $async$self = this, $alert, t1, t2, t3, $event;
+        $async$self = this, $alert, t1, t2, $event;
       var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
         if ($async$errorCode === 1)
           return A._asyncRethrow($async$result, $async$completer);
@@ -25395,31 +24975,17 @@
               if ($event instanceof A.DevToolsResponse) {
                 if (!$event.success) {
                   $alert = "DevTools failed to open with:\n" + A.S($event.error);
-                  if ($event.promptExtension) {
-                    t1 = window;
-                    t1.toString;
-                    t1 = B.Window_methods.confirm$1(t1, $alert);
-                  } else
-                    t1 = false;
-                  if (t1) {
-                    t1 = window;
-                    t1.toString;
-                    B.Window_methods.open$2(t1, "https://goo.gle/dart-debug-extension", "_blank");
-                  } else {
-                    t1 = window;
-                    t1.toString;
-                    B.Window_methods.alert$1(t1, $alert);
-                  }
+                  if ($event.promptExtension && B.Window_methods.confirm$1(window, $alert))
+                    B.Window_methods.open$2(window, "https://goo.gle/dart-debug-extension", "_blank");
+                  else
+                    B.Window_methods.alert$1(window, $alert);
                 }
               } else if ($event instanceof A.RunRequest)
                 A.runMain();
               else if ($event instanceof A.ErrorResponse) {
-                window.toString;
                 t1 = $event.error;
                 t2 = $event.stackTrace;
-                t3 = typeof console != "undefined";
-                t3.toString;
-                if (t3)
+                if (typeof console != "undefined")
                   window.console.error("Error from backend:\n\nError: " + t1 + "\n\nStack Trace:\n" + t2);
               }
             case 3:
@@ -25439,27 +25005,7 @@
   };
   A.main__closure6.prototype = {
     call$1(e) {
-      var t1;
-      if (type$.KeyboardEvent._is(e))
-        if (B.JSArray_methods.contains$1(B.List_er0, e.key)) {
-          t1 = e.altKey;
-          t1.toString;
-          if (t1) {
-            t1 = e.ctrlKey;
-            t1.toString;
-            if (!t1) {
-              t1 = e.metaKey;
-              t1.toString;
-              t1 = !t1;
-            } else
-              t1 = false;
-          } else
-            t1 = false;
-        } else
-          t1 = false;
-      else
-        t1 = false;
-      if (t1) {
+      if (type$.KeyboardEvent._is(e) && B.JSArray_methods.contains$1(B.List_er0, e.key) && e.altKey && !e.ctrlKey && !e.metaKey) {
         e.preventDefault();
         self.$launchDevTools.call$0();
       }
@@ -25491,9 +25037,7 @@
       var t2,
         t1 = A._asStringQ(self.$dartEntrypointPath);
       b.get$_$this()._appEntrypointPath = t1;
-      t1 = window;
-      t1.toString;
-      t1 = A._asStringQ(A.JsObject_JsObject$fromBrowserObject(t1).$index(0, "$dartAppId"));
+      t1 = A._asStringQ(A.JsObject_JsObject$fromBrowserObject(window).$index(0, "$dartAppId"));
       b.get$_$this()._debug_info$_appId = t1;
       t1 = A._asStringQ(self.$dartAppInstanceId);
       b.get$_$this()._appInstanceId = t1;
@@ -25501,21 +25045,14 @@
       t2 = B.Location_methods.get$origin(t1._as(window.location));
       b.get$_$this()._appOrigin = t2;
       t1 = t1._as(window.location).href;
-      t1.toString;
       b.get$_$this()._appUrl = t1;
       t1 = A._authUrl();
       b.get$_$this()._authUrl = t1;
-      t1 = window;
-      t1.toString;
-      t1 = A._asStringQ(A.JsObject_JsObject$fromBrowserObject(t1).$index(0, "$dartExtensionUri"));
+      t1 = A._asStringQ(A.JsObject_JsObject$fromBrowserObject(window).$index(0, "$dartExtensionUri"));
       b.get$_$this()._extensionUrl = t1;
-      t1 = window;
-      t1.toString;
-      t1 = A._asBoolQ(A.JsObject_JsObject$fromBrowserObject(t1).$index(0, "$isInternalBuild"));
+      t1 = A._asBoolQ(A.JsObject_JsObject$fromBrowserObject(window).$index(0, "$isInternalBuild"));
       b.get$_$this()._isInternalBuild = t1;
-      t1 = window;
-      t1.toString;
-      t1 = A._asBoolQ(A.JsObject_JsObject$fromBrowserObject(t1).$index(0, "$isFlutterApp"));
+      t1 = A._asBoolQ(A.JsObject_JsObject$fromBrowserObject(window).$index(0, "$isFlutterApp"));
       b.get$_$this()._isFlutterApp = t1;
       return b;
     },
@@ -25595,7 +25132,6 @@
               }
               t1 = new A._Future($.Zone__current, type$._Future_bool);
               t2 = window;
-              t2.toString;
               t3 = type$.nullable_void_Function_MessageEvent._as(new A.LegacyRestarter_restart_closure(new A._AsyncCompleter(t1, type$._AsyncCompleter_bool)));
               type$.nullable_void_Function._as(null);
               $async$returnValue = t1.then$1$1(0, new A.LegacyRestarter_restart_closure0(A._EventStreamSubscription$(t2, "message", t3, false, type$.MessageEvent)), type$.bool);