Fix warnings_checker.dart handling of multitests

tests/lib/mirrors/invoke_call_through_getter_previously_accessed_test.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 test.invoke_call_through_getter;
 
 import 'dart:mirrors';
 
 import 'package:expect/expect.dart';
 
@@ skipping 33 matching lines @@
   InstanceMirror im = reflect(new C());
 
   Expect.equals('1 5 6',
                 im.invoke(#fakeFunctionCall, [5, 6]).reflectee);
   Expect.equals('7, 8',
                 im.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
   Expect.equals('2 C 9 10',
                 im.invoke(#closure, [9, 10]).reflectee);
   Expect.equals('3 C 11 12 13 null',
                 im.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 C 14 15 null 16', //                                       /// named: ok
-                im.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //   /// named: continued
+  Expect.equals('4 C 14 15 null 16', //                                       //# named: ok
+                im.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //   //# named: continued
   Expect.equals('DNU',
                 im.invoke(#doesNotExist, [17, 18]).reflectee);
   Expect.throws(() => im.invoke(#closure, ['wrong arity']),
                 (e) => e is NoSuchMethodError);
   Expect.throws(() => im.invoke(#notAClosure, []),
                 (e) => e is NoSuchMethodError);
 }
 
 class D {
   static get fakeFunctionCall => new FakeFunctionCall();
@@ skipping 17 matching lines @@
   ClassMirror cm = reflectClass(D);
 
   Expect.equals('1 5 6',
                 cm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
   Expect.equals('7, 8',
                 cm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
   Expect.equals('2 9 10',
                 cm.invoke(#closure, [9, 10]).reflectee);
   Expect.equals('3 11 12 13 null',
                 cm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16', //                                        /// named: continued
-                cm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //  /// named: continued
+  Expect.equals('4 14 15 null 16', //                                        //# named: continued
+                cm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //  //# named: continued
   Expect.throws(() => cm.invoke(#closure, ['wrong arity']),
                 (e) => e is NoSuchMethodError);
 }
 
 get fakeFunctionCall => new FakeFunctionCall();
 get fakeFunctionNSM => new FakeFunctionNSM();
 get closure => (x, y) => '2 $x $y';
 get closureOpt => (x, y, [z, w]) => '3 $x $y $z $w';
 get closureNamed => (x, y, {z, w}) => '4 $x $y $z $w';
 get notAClosure => 'Not a closure';
@@ skipping 11 matching lines @@
   LibraryMirror lm = reflectClass(D).owner;
 
   Expect.equals('1 5 6',
                 lm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
   Expect.equals('7, 8',
                 lm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
   Expect.equals('2 9 10',
                 lm.invoke(#closure, [9, 10]).reflectee);
   Expect.equals('3 11 12 13 null',
                 lm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16', //                                       /// named: continued
-                lm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); // /// named: continued
+  Expect.equals('4 14 15 null 16', //                                       //# named: continued
+                lm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); // //# named: continued
   Expect.throws(() => lm.invoke(#closure, ['wrong arity']),
                 (e) => e is NoSuchMethodError);
 }
 
 main() {
   // Access the getters/closures at the base level in this variant.
   testInstanceBase();
   testInstanceReflective();
   testClassBase();
   testClassReflective();
   testLibraryBase();
   testLibraryReflective();
 }