TryLock           438 src/execution.cc   if (FLAG_opt && ExecutionAccess::TryLock(isolate_)) {
TryLock          1365 src/isolate.h    static bool TryLock(Isolate* isolate) {
TryLock          1366 src/isolate.h      return isolate->break_access_->TryLock();
TryLock           539 src/platform.h   virtual bool TryLock() = 0;