Ignore lockfile entries where the source is wrong.

utils/tests/pub/install/switch_source_test.dart

Index: utils/tests/pub/install/switch_source_test.dart
diff --git a/utils/tests/pub/install/switch_source_test.dart b/utils/tests/pub/install/switch_source_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..db8864e54e16ec6837e32791a171c30cfdaa446a
--- /dev/null
+++ b/utils/tests/pub/install/switch_source_test.dart
@@ -0,0 +1,36 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS d.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 d.file.
+
+library pub_tests;
+
+import 'dart:io';
+
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+
+main() {
+  initConfig();
+  integration('re-installs a package if its source has changed', () {
+    d.dir('foo', [
+      d.libDir('foo', 'foo 0.0.1'),
+      d.libPubspec('foo', '0.0.1')
+    ]).create();
+
+    d.appDir([{"path": "../foo"}]).create();
+
+    schedulePub(args: ['install'],
+        output: new RegExp("Dependencies installed!\$"));
+
+    d.packagesDir({"foo": "0.0.1"}).validate();
+
+    servePackages([packageMap("foo", "1.2.3")]);
+
+    d.appDir([dependencyMap("foo", "any")]).create();
+
+    schedulePub(args: ['install'],
+        output: new RegExp("Dependencies installed!\$"));
+
+    d.packagesDir({"foo": "1.2.3"}).validate();
+  });
+}