Revert "Migrating a block of dart 2:"

tests/language/class_override_test.dart

Index: tests/language/class_override_test.dart
diff --git a/tests/language_2/class_override_test.dart b/tests/language/class_override_test.dart
similarity index 54%
copy from tests/language_2/class_override_test.dart
copy to tests/language/class_override_test.dart
index 41ec7ad5e2d22db765d780c6430b33deada96e29..011e64a72ad4ae03151c648bc788882def5c8f0d 100644
--- a/tests/language_2/class_override_test.dart
+++ b/tests/language/class_override_test.dart
@@ -2,7 +2,7 @@
 // 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.
 
-// It is a static compile time error if a method m1 overrides a method m2 and has a
+// It is a static warning if a method m1 overrides a method m2 and has a
 // different number of required parameters.
 
 class A {
@@ -10,9 +10,14 @@ class A {
 }
 
 class B extends A {
-  /*@compile-error=unspecified*/ foo(a) {} 
+  foo(a) {} // //# 00: static type warning
 }
 
 main() {
-  new B().foo(42);
+  B instance = new B();
+  try {
+    instance.foo();
+  } on NoSuchMethodError catch (error) { // //# 00: continued
+  } finally {}
+  print("Success");
 }