Ensure that unmangled private names are unique.

tests/lib/mirrors/private_symbol_mangling_test.dart

Index: tests/lib/mirrors/private_symbol_mangling_test.dart
diff --git a/tests/lib/mirrors/private_symbol_mangling_test.dart b/tests/lib/mirrors/private_symbol_mangling_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..7ac0753cf1057460e133c98c59b71e5ac8125ced
--- /dev/null
+++ b/tests/lib/mirrors/private_symbol_mangling_test.dart
@@ -0,0 +1,71 @@
+// 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.
+
+library main;
+
+//@MirrorsUsed(targets: const ['C1', 'C2', '_privateGlobalField', '_privateGlobalMethod'])
+import 'dart:mirrors';
+import 'package:expect/expect.dart';
+import 'private_symbol_mangling_lib.dart';
+
+var _privateGlobalField = 1;
+
+_privateGlobalMethod() => 9;
+
+class C1 {
+  var _privateField = 0;
+  _privateMethod() => 2;
+}
+
+getPrivateGlobalFieldValue(LibraryMirror lib) {
+  for (Symbol symbol in lib.declarations.keys) {
+    DeclarationMirror decl = lib.declarations[symbol];
+    if (decl is VariableMirror) {
+      return lib.getField(symbol).reflectee;
+    }
+  }
+}
+
+getPrivateFieldValue(InstanceMirror cls) {
+  for (Symbol symbol in cls.type.declarations.keys) {
+    DeclarationMirror decl = cls.type.declarations[symbol];
+    if (decl is VariableMirror) {
+      return cls.getField(symbol).reflectee;
+    }
+  }
+}
+
+getPrivateGlobalMethodValue(LibraryMirror lib) {
+  for (Symbol symbol in lib.declarations.keys) {
+    DeclarationMirror decl = lib.declarations[symbol];
+    if (decl is MethodMirror && decl.isRegularMethod) {
+      return lib.invoke(symbol, []).reflectee;
+    }
+  }
+}
+
+getPrivateMethodValue(InstanceMirror cls) {
+  for (Symbol symbol in cls.type.declarations.keys) {
+    DeclarationMirror decl = cls.type.declarations[symbol];
+    if (decl is MethodMirror && decl.isRegularMethod) {
+      return cls.invoke(symbol, []).reflectee;
+    }
+  }
+}
+
+main() {
+  LibraryMirror libmain = currentMirrorSystem().findLibrary(#main);
+  LibraryMirror libother = currentMirrorSystem().findLibrary(#other);
+  Expect.equals(1, getPrivateGlobalFieldValue(libmain));
+  Expect.equals(3, getPrivateGlobalFieldValue(libother));
+  Expect.equals(9, getPrivateGlobalMethodValue(libmain));
+  Expect.equals(11, getPrivateGlobalMethodValue(libother));
+
+  var c1 = reflect(new C1());
+  var c2 = reflect(new C2());
+  Expect.equals(0, getPrivateFieldValue(c1));
+  Expect.equals(1, getPrivateFieldValue(c2));
+  Expect.equals(2, getPrivateMethodValue(c1));
+  Expect.equals(3, getPrivateMethodValue(c2));
+}