[wasm] Enable and fix wasm exceptions WPTs

For most tests, expectations were deleted since the tests now pass.

The getArg test was corrected to match the spec:
https://webassembly.github.io/exception-handling/js-api/index.html#dom-exception-getarg

The tag type test had its expectations updated, but is still
(incorrectly) failing because the test also depends on the not-yet-shipped
type reflection proposal. Updated the spec bug to bring this conversation
back to the spec (WebAssembly/exception-handling#172).

Bug: v8:11992
Change-Id: I979a9eb00219e0b9515d43bbeff6f80ac57df7c9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3972061
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1063368}

third_party/blink/web_tests/TestExpectations

@@ -5184,10 +5184,6 @@ crbug.com/1084256 [ Linux ] http/tests/misc/insert-iframe-into-xml-document-befo
 crbug.com/1084256 [ Mac ] http/tests/misc/insert-iframe-into-xml-document-before-xsl-transform.html [ Failure Pass ]
 crbug.com/1084276 [ Mac ] http/tests/security/offscreencanvas-placeholder-read-blocked-no-crossorigin.html [ Crash Failure Pass ]
 
-# Temporarily disabled to land the new wasm exception handling JS API
-crbug.com/v8/11992 external/wpt/wasm/jsapi/exception/* [ Skip ]
-crbug.com/v8/11992 external/wpt/wasm/jsapi/tag/* [ Skip ]
-
 # Assorted virtual/threaded/.../wpt/scroll-animations tests
 crbug.com/1279648 [ Mac ] virtual/threaded/external/wpt/scroll-animations/css/scroll-timeline-default-descriptors-iframe.html [ Failure ]
 crbug.com/1279648 virtual/threaded/external/wpt/scroll-animations/css/scroll-timeline-default-descriptors-quirks-mode.html [ Failure ]

third_party/blink/web_tests/external/wpt/wasm/jsapi/exception/getArg.tentative.any.js

@@ -20,7 +20,7 @@ test(() => {
 test(() => {
   const tag = new WebAssembly.Tag({ parameters: [] });
   const exn = new WebAssembly.Exception(tag, []);
-  assert_throws_js(TypeError, () => exn.getArg(tag, 1));
+  assert_throws_js(RangeError, () => exn.getArg(tag, 1));
 }, "Index out of bounds");
 
 test(() => {

third_party/blink/web_tests/external/wpt/wasm/jsapi/tag/type.tentative.any-expected.txt

@@ -1,6 +1,6 @@
 This is a testharness.js-based test.
-FAIL [] WebAssembly.Tag is not a constructor
-FAIL [i32 i64] WebAssembly.Tag is not a constructor
-FAIL [i32 i64 f32 f64] WebAssembly.Tag is not a constructor
+FAIL [] tag.type is not a function
+FAIL [i32 i64] tag.type is not a function
+FAIL [i32 i64 f32 f64] tag.type is not a function
 Harness: the test ran to completion.
 

third_party/blink/web_tests/external/wpt/wasm/jsapi/tag/type.tentative.any.worker-expected.txt

@@ -1,6 +1,6 @@
 This is a testharness.js-based test.
-FAIL [] WebAssembly.Tag is not a constructor
-FAIL [i32 i64] WebAssembly.Tag is not a constructor
-FAIL [i32 i64 f32 f64] WebAssembly.Tag is not a constructor
+FAIL [] tag.type is not a function
+FAIL [i32 i64] tag.type is not a function
+FAIL [i32 i64 f32 f64] tag.type is not a function
 Harness: the test ran to completion.