Disable finding plugin locations in the pubspec

pkg/analysis_server/test/src/plugin/plugin_locator_test.dart

Index: pkg/analysis_server/test/src/plugin/plugin_locator_test.dart
diff --git a/pkg/analysis_server/test/src/plugin/plugin_locator_test.dart b/pkg/analysis_server/test/src/plugin/plugin_locator_test.dart
index 6794a52bab51a7a2dacc4e3ef4cfb7ac902238ff..38e71a9e0a01f4f24ae3228404056102183827f4 100644
--- a/pkg/analysis_server/test/src/plugin/plugin_locator_test.dart
+++ b/pkg/analysis_server/test/src/plugin/plugin_locator_test.dart
@@ -28,13 +28,19 @@ class PluginLocatorTest {
     locator = new PluginLocator(resourceProvider);
   }
 
+  @failingTest
   void test_findPlugin_inPubspec_defaultDir() {
+    // Support for specifying plugin locations in the pubspec is temporarily
+    // disabled.
     String dirPath = _createPubspecWithKey();
     _createDefaultDir();
     expect(locator.findPlugin(packageRoot), dirPath);
   }
 
+  @failingTest
   void test_findPlugin_inPubspec_noDefaultDir() {
+    // Support for specifying plugin locations in the pubspec is temporarily
+    // disabled.
     String dirPath = _createPubspecWithKey();
     expect(locator.findPlugin(packageRoot), dirPath);
   }