Separate JSON parsing from the JavaScript parser.

src/debug-debugger.js

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1283 matching lines @@
   return new ProtocolMessage(request);
 };
 
 
 DebugCommandProcessor.prototype.processDebugJSONRequest = function(json_request) {
   var request;  // Current request.
   var response;  // Generated response.
   try {
     try {
       // Convert the JSON string to an object.
-      request = %CompileString('(' + json_request + ')', false)();
+      request = %CompileString('(' + json_request + ')')();
 
       // Create an initial response.
       response = this.createResponse(request);
 
       if (!request.type) {
         throw new Error('Type not specified');
       }
 
       if (request.type != 'request') {
         throw new Error("Illegal type '" + request.type + "' in request");
@@ skipping 987 matching lines @@
     case 'string':
     case 'number':
       json = value;
       break
 
     default:
       json = null;
   }
   return json;
 }