Fix names of some tests in dart2js_extra.

tests/compiler/dart2js_extra/if_in_loop.dart

Index: tests/compiler/dart2js_extra/if_in_loop.dart
diff --git a/tests/compiler/dart2js_extra/if_in_loop.dart b/tests/compiler/dart2js_extra/if_in_loop.dart
deleted file mode 100644
index 2eef63dcb78f67bfc105188a2f35d901ea6beb35..0000000000000000000000000000000000000000
--- a/tests/compiler/dart2js_extra/if_in_loop.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// 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.
-
-import "package:expect/expect.dart";
-
-// Test for bug in code generation of if-with-aborting-branch-inside-loop.
-
-foo(p, q) {
-  var w = 10;
-  do {
-    if (p) {
-      w = 20;
-    } else {
-      w = 30;
-      return w;
-    }
-  } while (q);
-  return w;
-}
-
-main() {
-  Expect.equals(30, foo(false, true));
-  Expect.equals(30, foo(false, false));
-  Expect.equals(20, foo(true, false));
-}