Mojom compiler: Eliminate duplicate representation of enum values in mojom_files.mojom.

mojo/dart/unittests/embedder_tests/bindings_generation_test.dart

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'dart:async';
 import 'dart:isolate';
 import 'dart:typed_data';
 import 'dart:convert';
 
 import 'package:mojo/bindings.dart' as bindings;
@@ skipping 435 matching lines @@
   Expect.equals(me.declData.fullIdentifier, fullIdentifier);
 
   // Now compare the labels to verify that the enum labels match the expected
   // ones.
   Expect.equals(me.values.length, labelMap.length);
   me.values.forEach((mojom_types.EnumValue ev) {
     // Check that the declData is correct...
     Expect.isNotNull(ev.declData);
     Expect.isNotNull(labelMap[ev.declData.shortName]);
 
-    // Check that the enumTypeKey matches the enumID.
-    Expect.equals(ev.enumTypeKey, enumID);
+    // Check that the enum value's intValue is as expected.
     Expect.equals(ev.intValue, labelMap[ev.declData.shortName]);
   });
 }
 
 // Test that mojom type descriptors were generated correctly for validation's
 // StructE.
 testValidateStructType() {
   var testValidationDescriptor = validation.getAllMojomTypeDefinitions();
   String shortName = "StructE";
   String fullIdentifier = "mojo.test.StructE";
@@ skipping 288 matching lines @@
   testValidateMojomTypes();
   testCamelCase();
   testSerializeErrorMessage();
   await testEnums();
   await testCallResponse();
   await testAwaitCallResponse();
   await runOnClosedTest();
   await testRegression551();
   await testServiceName();
 }