Fix warnings_checker.dart handling of multitests

tests/language_strong/call_constructor_on_unresolvable_class_test.dart

Index: tests/language_strong/call_constructor_on_unresolvable_class_test.dart
diff --git a/tests/language_strong/call_constructor_on_unresolvable_class_test.dart b/tests/language_strong/call_constructor_on_unresolvable_class_test.dart
index 4864d8775c7a6f81c02d249a76944bd26181dcaa..caf9b0c48994ac9ae461bb5f237de2e9e0a446f7 100644
--- a/tests/language_strong/call_constructor_on_unresolvable_class_test.dart
+++ b/tests/language_strong/call_constructor_on_unresolvable_class_test.dart
@@ -19,20 +19,20 @@ never() {
 main() {
   if (never()) {
     // These should not produce errors because the calls are never executed.
-    new A(); //        /// 01: static type warning
-    new A.foo(); //    /// 02: static type warning
-    new lib.A(); //    /// 03: static type warning
+    new A(); //        //# 01: static type warning
+    new A.foo(); //    //# 02: static type warning
+    new lib.A(); //    //# 03: static type warning
   }
 
-  new A(); //        /// 04: static type warning, runtime error
-  new A.foo(); //    /// 05: static type warning, runtime error
-  new lib.A(); //    /// 06: static type warning, runtime error
+  new A(); //        //# 04: static type warning, runtime error
+  new A.foo(); //    //# 05: static type warning, runtime error
+  new lib.A(); //    //# 06: static type warning, runtime error
 
-  var ex; //                   /// 07: static type warning
-  try { //                     /// 07: continued
-    new A(); //                /// 07: continued
-  } catch (e) { //             /// 07: continued
-    ex = e; //                 /// 07: continued
-  } //                         /// 07: continued
-  Expect.isTrue(ex != null); /// 07: continued
+  var ex; //                   //# 07: static type warning
+  try { //                     //# 07: continued
+    new A(); //                //# 07: continued
+  } catch (e) { //             //# 07: continued
+    ex = e; //                 //# 07: continued
+  } //                         //# 07: continued
+  Expect.isTrue(ex != null); //# 07: continued
 }