PerformGC         845 src/assembler.cc       ExternalReference(Redirect(isolate, FUNCTION_ADDR(Runtime::PerformGC)));
PerformGC        4905 src/ia32/code-stubs-ia32.cc     __ call(FUNCTION_ADDR(Runtime::PerformGC), RelocInfo::RUNTIME_ENTRY);
PerformGC         703 src/runtime.h    static void PerformGC(Object* result);
PerformGC        3925 src/x64/code-stubs-x64.cc             FUNCTION_ADDR(Runtime::PerformGC),