Change how debugger handles source breakpoints

tests/standalone/debugger/debug_lib.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // Library used by debugger wire protocol tests (standalone VM debugging).
 
 library DartDebugger;
 
 import "dart:async";
 import "dart:convert";
@@ skipping 453 matching lines @@
       lastCommand.matchResponse(this);
       lastCommand = null;
       if (errorsDetected) {
         error("Error while matching response to debugger command");
         error("Response received from debug target: $receivedMsg");
       }
     }
   }
 
   // Send next debugger command in the script, if a response
-  // form the last command has been received and processed.
+  // from the last command has been received and processed.
   void sendNextCommand() {
     while (script.isNextEventMatcher) {
       EventMatcher matcher = script.currentEntry;
       script.advance();
       matcher.matchEvent(this);
     }
 
     if (lastCommand == null) {
       if (script.currentEntry is Command) {
         script.currentEntry.send(this);
@@ skipping 118 matching lines @@
 
 
 bool RunScript(List script, List<String> arguments) {
   if (arguments.contains("--debuggee")) {
     return false;
   }
   verboseWire = arguments.contains("--wire");
 
   // Port number 0 means debug target picks a free port dynamically.
   var targetOpts = [ "--debug:0" ];
+  if (arguments.contains("--verbose")) {
+    targetOpts.add("--verbose_debug");
+  }
   targetOpts.add(Platform.script.toFilePath());
   targetOpts.add("--debuggee");
   print('args: ${targetOpts.join(" ")}');
 
   Process.start(Platform.executable, targetOpts).then((Process process) {
     print("Debug target process started, pid ${process.pid}.");
     process.stdin.close();
     var debugger = new Debugger(process, new DebugScript(script));
   });
   return true;
 }