[debugger] fix debug command processor wrt restart frame.

R=jkummerow@chromium.org
BUG=v8:4757
LOG=N

Review URL: https://codereview.chromium.org/1700693002

Cr-Commit-Position: refs/heads/master@{#33983}

src/debug/debug.js

@@ -2315,7 +2315,7 @@ DebugCommandProcessor.prototype.restartFrameRequest_ = function(
     frame_mirror = this.exec_state_.frame();
   }
 
-  var result_description = Debug.LiveEdit.RestartFrame(frame_mirror);
+  var result_description = frame_mirror.restart();
   response.body = {result: result_description};
 };