Fix warnings_checker.dart handling of multitests

tests/language/named_parameters_test.dart

 // Copyright (c) 2012, 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.
 // Dart test program for testing named parameters.
 
 import "package:expect/expect.dart";
 
 
 class NamedParametersTest {
 
@@ skipping 48 matching lines @@
   static testMain() {
     NamedParametersTest np = new NamedParametersTest();
     Expect.equals(0, F00());
     Expect.equals(0, np.f11());
     Expect.equals(10, F11(10));
     Expect.equals(10, np.f22(10));
     Expect.equals(20, F10());
     Expect.equals(20, np.f21());
     Expect.equals(20, F10(20));
     Expect.equals(20, np.f21(20));
-    Expect.equals(20, F10(b:20)); // /// 01: runtime error
-    Expect.equals(20, np.f21(b:20)); // /// 02: runtime error
+    Expect.equals(20, F10(b:20)); // //# 01: runtime error
+    Expect.equals(20, np.f21(b:20)); // //# 02: runtime error
     Expect.equals(1020, F21(10));
     Expect.equals(1020, np.f32(10));
     Expect.equals(1025, F21(10, 25));
     Expect.equals(1025, np.f32(10, 25));
-    Expect.equals(1025, F21(10, b:25)); // /// 03: runtime error
-    Expect.equals(1025, np.f32(10, b:25)); // /// 04: runtime error
+    Expect.equals(1025, F21(10, b:25)); // //# 03: runtime error
+    Expect.equals(1025, np.f32(10, b:25)); // //# 04: runtime error
     Expect.equals(102030, F31(10));
     Expect.equals(102030, np.f42(10));
     Expect.equals(102530, F31(10, 25));
     Expect.equals(102530, np.f42(10, 25));
-    Expect.equals(102035, F31(10, c:35)); // /// 05: runtime error
-    Expect.equals(102035, np.f42(10, c:35)); // /// 06: runtime error
+    Expect.equals(102035, F31(10, c:35)); // //# 05: runtime error
+    Expect.equals(102035, np.f42(10, c:35)); // //# 06: runtime error
     Expect.equals(102535, F31(10, 25, 35));
     Expect.equals(102535, np.f42(10, 25, 35));
-    Expect.equals(102535, F31(10, 25, c:35)); // /// 07: runtime error
-    Expect.equals(102535, np.f42(10, 25, c:35)); // /// 08: runtime error
+    Expect.equals(102535, F31(10, 25, c:35)); // //# 07: runtime error
+    Expect.equals(102535, np.f42(10, 25, c:35)); // //# 08: runtime error
     Expect.equals(10200040, F41(10));
     Expect.equals(10200040, np.f52(10));
-    Expect.equals(10203540, F41(10, c:35)); // /// 09: runtime error
-    Expect.equals(10203540, np.f52(10, c:35)); // /// 10: runtime error
+    Expect.equals(10203540, F41(10, c:35)); // //# 09: runtime error
+    Expect.equals(10203540, np.f52(10, c:35)); // //# 10: runtime error
   }
 }
 
 abstract class I {
   factory I() = C;
   int mul(int a, [int factor]);
 }
 
 class C implements I {
   int mul(int a, [int factor = 10]) {
     return a * factor;
   }
 }
 
 hello(msg, to, {from}) => '${from} sent ${msg} to ${to}';
 message() => hello("gladiolas", "possums", from: "Edna");
 
 main() {
   NamedParametersTest.testMain();
   var i = new I();
   Expect.equals(100, i.mul(10));
   Expect.equals(1000, i.mul(10, 100));
   var c = new C();
   Expect.equals(100, c.mul(10));
   Expect.equals(1000, c.mul(10, 100));
   Expect.equals("Edna sent gladiolas to possums", message());
 }