Keep full test_ method names in reflective tests.

pkg/analysis_server/test/reflective_tests.dart

 // Copyright (c) 2014, 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 reflective_tests;
 
 @MirrorsUsed(metaTargets: 'ReflectiveTestCase')
 import 'dart:mirrors';
 import 'dart:async';
 
@@ skipping 21 matching lines @@
   String className = MirrorSystem.getName(classMirror.simpleName);
   group(className, () {
     classMirror.instanceMembers.forEach((symbol, memberMirror) {
       // we need only methods
       if (memberMirror is! MethodMirror || !memberMirror.isRegularMethod) {
         return;
       }
       String memberName = MirrorSystem.getName(symbol);
       // test_
       if (memberName.startsWith('test_')) {
-        String testName = memberName.substring('test_'.length);
-        test(testName, () {
+        test(memberName, () {
           return _runTest(classMirror, symbol);
         });
         return;
       }
       // solo_test_
       if (memberName.startsWith('solo_test_')) {
-        String testName = memberName.substring('solo_test_'.length);
-        solo_test(testName, () {
+        solo_test(memberName, () {
           return _runTest(classMirror, symbol);
         });
       }
     });
   });
 }
 
 
 Future _invokeSymbolIfExists(InstanceMirror instanceMirror, Symbol symbol) {
   var invocationResult = null;
@@ skipping 23 matching lines @@
 }
 
 
 /**
  * A marker annotation used to instruct dart2js to keep reflection information
  * for the annotated classes.
  */
 class ReflectiveTestCase {
   const ReflectiveTestCase();
 }