PerformGarbageCollection  587 src/heap.cc            PerformGarbageCollection(collector, &tracer);
PerformGarbageCollection  607 src/heap.cc        PerformGarbageCollection(SCAVENGER, &tracer);
PerformGarbageCollection  609 src/heap.cc        PerformGarbageCollection(MARK_COMPACTOR, &tracer);
PerformGarbageCollection 1822 src/heap.h       bool PerformGarbageCollection(GarbageCollector collector,