fix and update debug-debugger.js

added `switch` statement is missing `break`s

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/494303004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23441 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

AUTHORS

@@ -56,6 +56,7 @@ Patrick Gansterer <paroga@paroga.com>
 Peter Varga <pvarga@inf.u-szeged.hu>
 Rafal Krypa <rafal@krypa.net>
 Rajeev R Krithivasan <rkrithiv@codeaurora.org>
+Refael Ackermann <refack@gmail.com>
 Rene Rebe <rene@exactcode.de>
 Robert Mustacchi <rm@fingolfin.org>
 Rodolph Perfetta <rodolph.perfetta@arm.com>

src/debug-debugger.js

@@ -21,7 +21,8 @@ Debug.DebugEvent = { Break: 1,
                      AfterCompile: 5,
                      CompileError: 6,
                      PromiseEvent: 7,
-                     AsyncTaskEvent: 8 };
+                     AsyncTaskEvent: 8,
+                     BreakForCommand: 9 };
 
 // Types of exceptions that can be broken upon.
 Debug.ExceptionBreak = { Caught : 0,
@@ -1172,10 +1173,13 @@ CompileEvent.prototype.toJSONProtocol = function() {
   switch (this.type_) {
     case Debug.DebugEvent.BeforeCompile:
       o.event = "beforeCompile";
+      break;
     case Debug.DebugEvent.AfterCompile:
       o.event = "afterCompile";
+      break;
     case Debug.DebugEvent.CompileError:
       o.event = "compileError";
+      break;
   }
   o.body = {};
   o.body.script = this.script_;