Unreviewed, suppress wrong threading assertion for InlineCacheHandler

https://bugs.webkit.org/show_bug.cgi?id=278435
rdar://134290611

It gets destroyed in the GC end phase and it gets stale assertion about threading checks. But that assertion is wrong since
GC end phase is ensuring that we are not running mutator, so we can safely and correctly derefing this InlineCacheHandler inside it.
This is fixing this wrong assertion.

* Source/JavaScriptCore/bytecode/InlineCacheCompiler.cpp:
(JSC::m_watchpoint):
* Source/JavaScriptCore/bytecode/InlineCacheCompiler.h:

Canonical link: https://commits.webkit.org/282538@main

Author: Constellation

Source/JavaScriptCore/bytecode/InlineCacheCompiler.cpp

@@ -1684,6 +1684,7 @@ InlineCacheHandler::InlineCacheHandler(Ref<InlineCacheHandler>&& previous, Ref<P
     , m_stubRoutine(WTFMove(stubRoutine))
     , m_watchpoint(WTFMove(watchpoint))
 {
+    disableThreadingChecks();
 }
 
 Ref<InlineCacheHandler> InlineCacheHandler::create(Ref<InlineCacheHandler>&& previous, CodeBlock* codeBlock, StructureStubInfo& stubInfo, Ref<PolymorphicAccessJITStubRoutine>&& stubRoutine, std::unique_ptr<StructureStubInfoClearingWatchpoint>&& watchpoint, unsigned callLinkInfoCount)

Source/JavaScriptCore/bytecode/InlineCacheCompiler.h

@@ -247,7 +247,9 @@ class InlineCacheHandler final : public RefCounted<InlineCacheHandler>, public T
 private:
     InlineCacheHandler()
         : Base(0)
-    { }
+    {
+        disableThreadingChecks();
+    }
 
     InlineCacheHandler(Ref<InlineCacheHandler>&&, Ref<PolymorphicAccessJITStubRoutine>&&, std::unique_ptr<StructureStubInfoClearingWatchpoint>&&, unsigned callLinkInfoCount, CacheType);