Fix string_interpolation tests.

tests/language/string_interpolation3_negative_test.dart

Index: tests/language/string_interpolation3_negative_test.dart
diff --git a/tests/language/string_interpolation3_negative_test.dart b/tests/language/string_interpolation3_negative_test.dart
deleted file mode 100644
index 14e2525f7d59408b4e541b1d662a1ac50d299827..0000000000000000000000000000000000000000
--- a/tests/language/string_interpolation3_negative_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011, 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.
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation3NegativeTest {
-  static testMain() {
-    print('F;P4;F$2R');  // Dollar followed by a number.
-  }
-}
-
-main() {
-  StringInterpolation3NegativeTest.testMain();
-}