Move isolate tests to lib/isolate.

tests/language/enum_const_test.dart

Index: tests/language/enum_const_test.dart
diff --git a/tests/language/enum_const_test.dart b/tests/language/enum_const_test.dart
deleted file mode 100644
index 54ba24f51c3bd1619053e552179e8782ef3fd13e..0000000000000000000000000000000000000000
--- a/tests/language/enum_const_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2014, 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.
-
-// SharedOptions=--enable-enum
-
-import "dart:isolate";
-import "package:expect/expect.dart";
-
-enum Foo {
-  BAR, BAZ
-}
-
-verify(val) {
-  Expect.identical(Foo.BAR, val);
-}
-
-main() {
-  test1(); /// 01: ok
-  test2(); /// 02: ok
-}
-
-test1() => verify(Foo.BAR);
-
-test2() {
-  var rp;
-  rp = new RawReceivePort((val) {
-    verify(val);
-    rp.close();
-  });
-  rp.sendPort.send(Foo.BAR);
-}