Fix warnings_checker.dart handling of multitests

tests/language/constructor_name_test.dart

Index: tests/language/constructor_name_test.dart
diff --git a/tests/language/constructor_name_test.dart b/tests/language/constructor_name_test.dart
index 93742a6e6363f0bac2187758f9345ec385439b67..7559d2eaf46dd1c9355b998596ad0e1be2270634 100644
--- a/tests/language/constructor_name_test.dart
+++ b/tests/language/constructor_name_test.dart
@@ -3,14 +3,14 @@
 // BSD-style license that can be found in the LICENSE file.
 
 class Foo {
-  Bar.Foo(); /// 01: compile-time error
-  factory Bar(); /// 02: compile-time error
-  factory Bar.Baz(); /// 03: compile-time error
+  Bar.Foo(); //# 01: compile-time error
+  factory Bar(); //# 02: compile-time error
+  factory Bar.Baz(); //# 03: compile-time error
 }
 
 
 void main() {
   new Foo();
-  new Foo.Foo(); /// 01: continued
-  new Foo.Baz(); /// 03: continued
+  new Foo.Foo(); //# 01: continued
+  new Foo.Baz(); //# 03: continued
 }