Add kythe support to plugins and format the spec files

pkg/analyzer_plugin/test/integration/support/integration_test_methods.dart

Index: pkg/analyzer_plugin/test/integration/support/integration_test_methods.dart
diff --git a/pkg/analyzer_plugin/test/integration/support/integration_test_methods.dart b/pkg/analyzer_plugin/test/integration/support/integration_test_methods.dart
index 30f3c2d85bd24564797b77005db0dc0dc48333f6..58bf8dd8cba1a00c74decc3fd64e6f87c7281be3 100644
--- a/pkg/analyzer_plugin/test/integration/support/integration_test_methods.dart
+++ b/pkg/analyzer_plugin/test/integration/support/integration_test_methods.dart
@@ -708,6 +708,38 @@ abstract class IntegrationTestMixin {
   }
 
   /**
+   * Return the list of KytheEntry objects for some file, given the current
+   * state of the file system populated by "analysis.updateContent".
+   *
+   * Parameters
+   *
+   * file: FilePath
+   *
+   *   The file containing the code for which the Kythe Entry objects are being
+   *   requested.
+   *
+   * Returns
+   *
+   * entries: List<KytheEntry>
+   *
+   *   The list of KytheEntry objects for the queried file.
+   *
+   * files: List<FilePath>
+   *
+   *   The set of files paths that were required, but not in the file system,
+   *   to give a complete and accurate Kythe graph for the file. This could be
+   *   due to a referenced file that does not exist or generated files not
+   *   being generated or passed before the call to "getKytheEntries".
+   */
+  Future<KytheGetKytheEntriesResult> sendKytheGetKytheEntries(
+      String file) async {
+    var params = new KytheGetKytheEntriesParams(file).toJson();
+    var result = await server.send("kythe.getKytheEntries", params);
+    ResponseDecoder decoder = new ResponseDecoder(null);
+    return new KytheGetKytheEntriesResult.fromJson(decoder, 'result', result);
+  }
+
+  /**
    * Initialize the fields in InttestMixin, and ensure that notifications will
    * be handled.
    */