Oilpan: Disable the GC_PLUGIN_IGNORE annotation when compiling with asan.

Source/heap/Heap.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1028 matching lines @@
         void* operator new(size_t, NotNullTag, void* location) { return location; } \
         void* operator new(size_t, void* location) { return location; }             \
     DISALLOW_ALLOCATION()
 
 // These macros insert annotations that the Blink GC plugin for clang uses for
 // verification. STACK_ALLOCATED is used to declare that objects of this type
 // are always stack allocated. GC_PLUGIN_IGNORE is used to make the plugin
 // ignore a particular class or field when checking for proper usage. When using
 // GC_PLUGIN_IGNORE a bug-number should be provided as an argument where the
 // bug describes what needs to happen to remove the GC_PLUGIN_IGNORE again.
-#if COMPILER(CLANG)
-#define STACK_ALLOCATED()                               \
-    private:                                            \
-        __attribute__((annotate("blink_stack_allocated")))    \
+#if COMPILER(CLANG) && !defined(ADDRESS_SANITIZER)
+#define STACK_ALLOCATED()                                  \
+    private:                                               \
+        __attribute__((annotate("blink_stack_allocated"))) \
         void* operator new(size_t) = delete;
 #define GC_PLUGIN_IGNORE(bug)                           \
     __attribute__((annotate("blink_gc_plugin_ignore")))
 #else
 #define STACK_ALLOCATED() DISALLOW_ALLOCATION()
 #define GC_PLUGIN_IGNORE(bug)
 #endif
 
 NO_SANITIZE_ADDRESS
 void HeapObjectHeader::checkHeader() const
@@ skipping 652 matching lines @@
 // to export. This forces it to export all the methods from ThreadHeap.
 template<> void ThreadHeap<FinalizedHeapObjectHeader>::addPageToHeap(const GCInfo*);
 template<> void ThreadHeap<HeapObjectHeader>::addPageToHeap(const GCInfo*);
 extern template class HEAP_EXPORT ThreadHeap<FinalizedHeapObjectHeader>;
 extern template class HEAP_EXPORT ThreadHeap<HeapObjectHeader>;
 #endif
 
 }
 
 #endif // Heap_h