anchor.diff:    }
   
     String helpShort =
  -      'Step into asynchronous continuation';
  +      'Step over await or yield';
   
     String helpLong =
         'Continue running the isolate until control returns to the current '
         'activation of an async or async* function.\n'
         '\n'
  -      'Syntax: astep\n';
  +      'Syntax: anext\n';
   }
   
   class FinishCommand extends DebuggerCommand {
  
positive.code:       'Syntax: step\n';
  }
  
  class AsyncStepCommand extends DebuggerCommand {
    AsyncStepCommand(Debugger debugger) : super(debugger, 'astep', []) {
    }
  
    Future run(List<String> args) async {
  
negative.code:         new ContinueCommand(this),
          new NextCommand(this),
          new StepCommand(this),
          new AsyncNextCommand(this),
          new FinishCommand(this),
          new BreakCommand(this),
          new SetCommand(this),
  