Backed out 3 changesets (bug 1808352) for causing failures on test_bug1808352.html CLOSED TREE

Backed out changeset 631384644b87 (bug 1808352)
Backed out changeset 2970eb267939 (bug 1808352)
Backed out changeset ae9bde926915 (bug 1808352)

Author: Norisz Fay

dom/bindings/test/file_bug1808352_frame.html

@@ -26,12 +26,6 @@ skip-if =
   http3
 [test_bug1041646.html]
 [test_bug1123875.html]
-[test_bug1808352.html]
-support-files =
-  file_bug1808352_frame.html
-[test_bug1808352b.html]
-support-files =
-  file_bug1808352b_frame.html
 [test_barewordGetsWindow.html]
 support-files =
   file_barewordGetsWindow_frame1.html

dom/bindings/test/file_bug1808352b_frame.html

@@ -1000,9 +1000,6 @@ static bool CanAttachDOMCall(JSContext* cx, JSJitInfo::OpType type,
     return false;
   }
 
-  // Ion codegen expects DOM_OBJECT_SLOT to be a fixed slot in LoadDOMPrivate.
-  // It can be a dynamic slot if we transplanted this reflector object with a
-  // proxy.
   if (obj->is<NativeObject>() && obj->as<NativeObject>().numFixedSlots() == 0) {
     return false;
   }

dom/bindings/test/mochitest.ini

@@ -5280,7 +5280,6 @@ static void LoadDOMPrivate(MacroAssembler& masm, Register obj, Register priv,
   switch (kind) {
     case DOMObjectKind::Native:
       // If it's a native object, the value must be in a fixed slot.
-      // See CanAttachDOMCall in CacheIR.cpp.
       masm.debugAssertObjHasFixedSlots(obj, priv);
       masm.loadPrivate(Address(obj, NativeObject::getFixedSlotOffset(0)), priv);
       break;

dom/bindings/test/test_bug1808352.html

@@ -1482,7 +1482,6 @@ bool CallDOMGetter(JSContext* cx, const JSJitInfo* info, HandleObject obj,
   MOZ_ASSERT(info->type() == JSJitInfo::Getter);
   MOZ_ASSERT(obj->is<NativeObject>());
   MOZ_ASSERT(obj->getClass()->isDOMClass());
-  MOZ_ASSERT(obj->as<NativeObject>().numFixedSlots() > 0);
 
 #ifdef DEBUG
   DOMInstanceClassHasProtoAtDepth instanceChecker =
@@ -1516,7 +1515,6 @@ bool CallDOMSetter(JSContext* cx, const JSJitInfo* info, HandleObject obj,
   MOZ_ASSERT(info->type() == JSJitInfo::Setter);
   MOZ_ASSERT(obj->is<NativeObject>());
   MOZ_ASSERT(obj->getClass()->isDOMClass());
-  MOZ_ASSERT(obj->as<NativeObject>().numFixedSlots() > 0);
 
 #ifdef DEBUG
   DOMInstanceClassHasProtoAtDepth instanceChecker =