Fix warnings_checker.dart handling of multitests

tests/language_strong/enum_syntax_test.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.
 
 // SharedOptions=--enable-enum
 
 // Basic syntax test for enumeration types
 
 import 'package:expect/expect.dart';
 
 
 enum Color { red, orange, yellow, green }
 
 // Additional comma at end of list is ok.
 enum Veggies { carrot, bean, broccolo, }
 
 // Need at least one enumeration identifier.
-enum Nada {} // /// 01: compile-time error
+enum Nada {} // //# 01: compile-time error
 
 // Duplicate entries are a compile-time error
-enum ComeAgain { ahau, knust, zipfel, knust, gupf } // /// 02: compile-time error
+enum ComeAgain { ahau, knust, zipfel, knust, gupf } // //# 02: compile-time error
 
 // Enum entries must not collide with implicitly defined members.
-enum ComeAgain { ahau, knust, zipfel, index } /// 03: compile-time error
+enum ComeAgain { ahau, knust, zipfel, index } //# 03: compile-time error
 
-enum ComeAgain { ahau, knust, zipfel, values } /// 04: compile-time error
+enum ComeAgain { ahau, knust, zipfel, values } //# 04: compile-time error
 
-enum ComeAgain { ahau, knust, zipfel, toString } /// 05: compile-time error
+enum ComeAgain { ahau, knust, zipfel, toString } //# 05: compile-time error
 
 // Enum entry must not collide with enum type name.
-enum ComeAgain { ahau, knust, zipfel, ComeAgain } /// 06: compile-time error
+enum ComeAgain { ahau, knust, zipfel, ComeAgain } //# 06: compile-time error
 
 // Missing comma.
-enum Numbers { one, two, three four, five } // /// 07: compile-time error
+enum Numbers { one, two, three four, five } // //# 07: compile-time error
 
 // Missing enum type name.
-enum { eins, zwei, drei } // /// 08: compile-time error
+enum { eins, zwei, drei } // //# 08: compile-time error
 
 // Duplicate name in library scope.
 topLevelFunction() => null;
-enum topLevelFunction { bla, blah } // /// 09: compile-time error
+enum topLevelFunction { bla, blah } // //# 09: compile-time error
 
 class C {}
-enum C { bla, blah } // /// 10: compile-time error
+enum C { bla, blah } // //# 10: compile-time error
 
 var zzTop;
-enum zzTop { Billy, Dusty, Frank } // /// 11: compile-time error
+enum zzTop { Billy, Dusty, Frank } // //# 11: compile-time error
 
 // Enum type cannot be super type or interface type.
-class Rainbow extends Color {} // /// 20: compile-time error
-class Rainbow implements Color {} // /// 21: compile-time error
-class Rainbow extends List with Color {} // /// 22: compile-time error
+class Rainbow extends Color {} // //# 20: compile-time error
+class Rainbow implements Color {} // //# 21: compile-time error
+class Rainbow extends List with Color {} // //# 22: compile-time error
 
 main() {
-  Nada x; /// 01: continued
-  var x = ComeAgain.zipfel; // /// 02: continued
-  var x = ComeAgain.zipfel; // /// 03: continued
-  var x = ComeAgain.zipfel; // /// 04: continued
-  var x = ComeAgain.zipfel; // /// 05: continued
-  var x = ComeAgain.zipfel; // /// 06: continued
-  var x = Numbers.four; // /// 07: continued
-  var x = topLevelFunction.bla; // /// 09: continued
-  var x = C.bla; // /// 10: continued
-  var x = zzTop.Frank; // /// 11: continued
+  Nada x; //# 01: continued
+  var x = ComeAgain.zipfel; // //# 02: continued
+  var x = ComeAgain.zipfel; // //# 03: continued
+  var x = ComeAgain.zipfel; // //# 04: continued
+  var x = ComeAgain.zipfel; // //# 05: continued
+  var x = ComeAgain.zipfel; // //# 06: continued
+  var x = Numbers.four; // //# 07: continued
+  var x = topLevelFunction.bla; // //# 09: continued
+  var x = C.bla; // //# 10: continued
+  var x = zzTop.Frank; // //# 11: continued
 
-  var x = new Rainbow(); // /// 20: continued
-  var x = new Rainbow(); // /// 21: continued
-  var x = new Rainbow(); // /// 22: continued
+  var x = new Rainbow(); // //# 20: continued
+  var x = new Rainbow(); // //# 21: continued
+  var x = new Rainbow(); // //# 22: continued
 
   // It is a compile-time error to explicitly instantiate an enum instance.
-  var x = new Color(); // /// 30: compile-time error
+  var x = new Color(); // //# 30: compile-time error
 }