Mixin            1152 Source/platform/heap/HeapTest.cpp class UseMixin : public SimpleObject, public Mixin {
Mixin            1164 Source/platform/heap/HeapTest.cpp         Mixin::trace(visitor);
Mixin            3001 Source/platform/heap/HeapTest.cpp     Persistent<Mixin> mixin = usemixin;
Mixin            3006 Source/platform/heap/HeapTest.cpp     PersistentHeapHashSet<WeakMember<Mixin> > weakMap;