DebugCommand     3140 src/debug.cc       isolate_->stack_guard()->DebugCommand();
DebugCommand     3168 src/debug.cc       isolate_->stack_guard()->DebugCommand();
DebugCommand     3347 src/debug.cc         isolate_->stack_guard()->DebugCommand();
DebugCommand      202 src/execution.h   void DebugCommand();