Valgrind Mac: Suppress a bunch of leaks in test_shell.

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 # running overnight and removing outdated bugs/suppressions.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 1981 matching lines @@
 }
 {
    bug_105323
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN15tracked_objects10ThreadData3GetEv
    fun:_ZN15tracked_objects10ThreadData32TallyRunOnWorkerThreadIfTrackingEPKNS_6BirthsERKNS_11TrackedTimeES6_S6_
    fun:_ZN4base12_GLOBAL__N_112WorkerThread10ThreadMainEv
    fun:_ZN4base12_GLOBAL__N_110ThreadFuncEPv
 }
+{
+   bug_105339
+   Memcheck:Leak
+   fun:malloc_zone_malloc
+   fun:_malloc_internal
+   fun:_cache_addForwardEntry
+   fun:lookUpMethod
+   fun:class_respondsToSelector
+}
+{
+   bug_105341_a
+   Memcheck:Leak
+   fun:malloc_zone_malloc
+   fun:_CFRuntimeCreateInstance
+   fun:allocWorld
+   fun:create
+   fun:aquireColorWorldByAttributes
+   fun:acquireColorWorld
+   fun:CMSTransformConvertComponents
+   fun:CGCMSInterfaceTransformConvertColorComponents
+}
+{
+   bug_105341_b
+   Memcheck:Leak
+   fun:calloc
+   fun:_ZN9CMMMemMgr3NewEm
+   ...
+   fun:create
+   fun:aquireColorWorldByAttributes
+   fun:acquireColorWorld
+   fun:CMSTransformConvertComponents
+   fun:CGCMSInterfaceTransformConvertColorComponents
+}
+{
+   bug_105342
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN15TSessionManager20CreateSessionManagerEv
+   fun:pthread_once
+   fun:_ZN15TSessionManagerC1Ev
+   fun:_ZN13TFontMetadata24CreateMetadataForFontURLEPK7__CFURLb
+   ...
+   fun:XTRegisterFont
+   fun:SendActivateFontsMessage
+}