Split PrivateMemberTest multi-test into separate tests.

tests/language/src/PrivateMemberLibA.dart

Index: tests/language/src/PrivateMemberLibA.dart
diff --git a/tests/language/src/PrivateMemberLibA.dart b/tests/language/src/PrivateMemberLibA.dart
deleted file mode 100644
index 4d735aee64b984bc19b84c592a9efaa1d8434253..0000000000000000000000000000000000000000
--- a/tests/language/src/PrivateMemberLibA.dart
+++ /dev/null
@@ -1,23 +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.
-
-class A {
-  bool b;
-  int i;
-
-  String s1;
-  String s2;
-  String s3;
-
-  int _private1;
-  String _private2;
-
-  static int _static1;
-  static String _static2;
-
-  int _fun1() { return 1; }
-  String _fun2() { return ""; }
-
-  void _fun4(int i) { }
-}