Valgrind: Suppress more Mac Valgrind redness. Part 2....

tools/valgrind/memcheck/suppressions_mac.txt

 # There are three kinds of suppressions in this file:
 # 1. Third party stuff we have no control over.
 #
 # 2. Intentional unit test errors, stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing.
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system.
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 1072 matching lines @@
    fun:_ZN7WebCore13WorkerRunLoop9runInModeEPNS_13WorkerContextERKNS_13ModePredicateE
    fun:_ZN7WebCore13WorkerRunLoop3runEPNS_13WorkerContextE
    fun:_ZN7WebCore12WorkerThread12runEventLoopEv
    fun:_ZN7WebCore12WorkerThread12workerThreadEv
    fun:_ZN7WebCore12WorkerThread17workerThreadStartEPv
    fun:_ZN3WTFL16threadEntryPointEPv
    fun:_pthread_start
    fun:thread_start
 }
 {
-   bug_42704
+   bug_42704a
    Memcheck:Addr4
    fun:_ZN2v88internal15MemoryAllocator9ChunkInfo*
    ...
    fun:_ZN2v88internal9RelocInfo6VerifyEv
    fun:_ZN2v88internal4Code10CodeVerifyEv
    fun:_ZN2v88internal10HeapObject16HeapObjectVerifyEv
    fun:_ZN2v88internal6Object6VerifyEv
    fun:_ZN2v88internal4Heap10CreateCodeERKNS0_8CodeDescEPNS0_13ZoneScopeInfoENS0_4Code5FlagsENS0_6HandleINS0_6ObjectEEE
    fun:_ZN2v88internal7Factory7NewCodeERKNS0_8CodeDescEPNS0_13ZoneScopeInfoENS0_4Code5FlagsENS0_6HandleINS0_6ObjectEEE
    fun:_ZN2v88internal13CodeGenerator16MakeCodeEpilogueEPNS0_14MacroAssemblerENS0_4Code5FlagsEPNS0_15CompilationInfoE
    fun:_ZN2v88internal13CodeGenerator8MakeCodeEPNS0_15CompilationInfoE
    fun:_ZN2v88internalL8MakeCodeENS0_6HandleINS0_7ContextEEEPNS0_15CompilationInfoE
    fun:_ZN2v88internal8Compiler11CompileLazyEPNS0_15CompilationInfoE
    fun:_ZN2v88internalL17CompileLazyHelperEPNS0_15CompilationInfoENS0_18ClearExceptionFlagE
    fun:_ZN2v88internal17CompileLazyInLoopENS0_6HandleINS0_10JSFunctionEEENS1_INS0_6ObjectEEENS0_18ClearExceptionFlagE
    fun:_ZN2v88internalL19Runtime_LazyCompileENS0_9ArgumentsE
 }
+Suppression:
+{
+   bug_42704b
+   Memcheck:Addr4
+   fun:_ZN2v88internal11HandleScope6ExtendEv
+   ...
+   fun:_ZN2v88internalL6InvokeEbNS0_6HandleINS0_10JSFunctionEEENS1_INS0_6ObjectEEEiPPPS4_Pb
+   fun:_ZN2v88internal9Execution4CallENS0_6HandleINS0_10JSFunctionEEENS2_INS0_6ObjectEEEiPPPS5_Pb
+   fun:_ZN2v88internal14MessageHandler17MakeMessageObjectEPKcPNS0_15MessageLocationENS0_6VectorINS0_6HandleINS0_6ObjectEEEEENS7_INS0_6StringEEE
+   fun:_ZN2v88internal3Top7DoThrowEPNS0_6ObjectEPNS0_15MessageLocationEPKc
+   fun:_ZN2v88internal3Top18TerminateExecutionEv
+   fun:_ZN2v88internal9Execution25HandleStackGuardInterruptEv
+   fun:_ZN2v88internalL18Runtime_StackGuardENS0_9ArgumentsE
+}