Set command-line breakpoints using the path suffix.

editor/tools/plugins/com.google.dart.tools.debug.core/src/com/google/dart/tools/debug/core/server/ServerDebugTarget.java

 /*
  * Copyright (c) 2012, the Dart project authors.
  * 
  * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
  * in compliance with the License. You may obtain a copy of the License at
  * 
  * http://www.eclipse.org/legal/epl-v10.html
  * 
  * Unless required by applicable law or agreed to in writing, software distributed under the License
  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
@@ skipping 452 matching lines @@
 
     breakpointManager.dispose();
   }
 
   private void fireStreamAppended(String message) {
     IStreamMonitor monitor = getProcess().getStreamsProxy().getOutputStreamMonitor();
 
     try {
       // monitor.fireStreamAppended(message);
       Method method = getMethod(monitor, "fireStreamAppended");
-      method.invoke(monitor, message);
+      if (method != null) {
+        method.invoke(monitor, message);
+      }
     } catch (Throwable t) {
-
+      DartDebugCorePlugin.logInfo(message);
     }
   }
 
   private void firstIsolateInit(VmIsolate isolate) {
     breakpointManager.connect(isolate);
   }
 
   private DartBreakpoint getBreakpointFor(VmLocation location) {
     if (location == null) {
       return null;
@@ skipping 92 matching lines @@
 
   }
 
   private void sleep(int millis) {
     try {
       Thread.sleep(millis);
     } catch (Exception exception) {
     }
   }
 }