Go bindings: Change generated enum value constants to be typed as the enum type.

mojo/dart/packages/_mojo_for_test_only/lib/mojo/test/test_enums.mojom.dart

Index: mojo/dart/packages/_mojo_for_test_only/lib/mojo/test/test_enums.mojom.dart
diff --git a/mojo/dart/packages/_mojo_for_test_only/lib/mojo/test/test_enums.mojom.dart b/mojo/dart/packages/_mojo_for_test_only/lib/mojo/test/test_enums.mojom.dart
index b6f3ca9a836810c5b42753f8939bb62430592854..e39162d7af4e1eac1c227bdf43d3bebab9ced32d 100644
--- a/mojo/dart/packages/_mojo_for_test_only/lib/mojo/test/test_enums.mojom.dart
+++ b/mojo/dart/packages/_mojo_for_test_only/lib/mojo/test/test_enums.mojom.dart
@@ -77,6 +77,72 @@ class TestEnum extends bindings.MojoEnum {
   int toJson() => mojoEnumValue;
 }
 
+class TestEnum2 extends bindings.MojoEnum {
+  static const TestEnum2 test = const TestEnum2._(0);
+  static const TestEnum2 v = const TestEnum2._(1);
+  static const TestEnum2 foo = const TestEnum2._(2);
+  static const TestEnum2 bar = const TestEnum2._(3);
+
+  const TestEnum2._(int v) : super(v);
+
+  static const Map<String, TestEnum2> valuesMap = const {
+    "test": test,
+    "v": v,
+    "foo": foo,
+    "bar": bar,
+  };
+  static const List<TestEnum2> values = const [
+    test,
+    v,
+    foo,
+    bar,
+  ];
+
+  static TestEnum2 valueOf(String name) => valuesMap[name];
+
+  factory TestEnum2(int v) {
+    switch (v) {
+      case 0:
+        return TestEnum2.test;
+      case 1:
+        return TestEnum2.v;
+      case 2:
+        return TestEnum2.foo;
+      case 3:
+        return TestEnum2.bar;
+      default:
+        return null;
+    }
+  }
+
+  static TestEnum2 decode(bindings.Decoder decoder0, int offset) {
+    int v = decoder0.decodeUint32(offset);
+    TestEnum2 result = new TestEnum2(v);
+    if (result == null) {
+      throw new bindings.MojoCodecError(
+          'Bad value $v for enum TestEnum2.');
+    }
+    return result;
+  }
+
+  String toString() {
+    switch(this) {
+      case test:
+        return 'TestEnum2.test';
+      case v:
+        return 'TestEnum2.v';
+      case foo:
+        return 'TestEnum2.foo';
+      case bar:
+        return 'TestEnum2.bar';
+      default:
+        return null;
+    }
+  }
+
+  int toJson() => mojoEnumValue;
+}
+
 
 
 mojom_types.RuntimeTypeInfo getRuntimeTypeInfo() => _runtimeTypeInfo ??
@@ -91,7 +157,7 @@ mojom_types.RuntimeTypeInfo  _initRuntimeTypeInfo() {
   // serializedRuntimeTypeInfo contains the bytes of the Mojo serialization of
   // a mojom_types.RuntimeTypeInfo struct describing the Mojom types in this
   // file. The string contains the base64 encoding of the gzip-compressed bytes.
-  var serializedRuntimeTypeInfo = "H4sIAAAJbogC/5JggAABKG0ApdHFYTQHGo2uzgGJz4ikThmIpYE4JDLANd7bNdIqNz8rX68ktbhELwRIuOaV5sLNY8RiH7o9L9DsY0BzvwWU/g8FHgzYgQDUDpgjpIBsISDG4TwMdzADMSsQhwOxPxDrZ+TnpuoXlabk52bmpRbpg8zRLy5KhjAKSpNyMpP1M/NKUovSEpNTi/WTMvNSMvPSi/VBdkHI+FSgbcV6IA25DBpAM1mAWAFqXwIjhF7ABKEfMKP6WwPmMUZUd0owovqb0nDjgborxDU4BMSXB2JxrOGmB1aCHm4gvUw0DDdi05sANA7Rw4FQODJSKRw5oWaFQfkyQCyCPRzDsKU/1kEWjowkhiMTlcKRG2q/m78/mC8HxGLYwxGsBD0c2QZZODKRGI7MVA5HJ8cgQuEIVoIejuyDLBxh4QIIAAD//1XEaKPoBgAA";
+  var serializedRuntimeTypeInfo = "H4sIAAAJbogC/5JggAABKG0ApdHFYTQHGo2urgBJnAmLucpALA3EIZEBrvHerpFWuflZ+XolqcUleiFAwjWvNBesTgWIZfCrMwKp00CzB909HmzYxV9AaQcGVABzpwWU/g8FHgzYgQA0LGCOkgKyhYAYh7cw3MEMxKxAHA7E/kCsn5Gfm6pfVJqSn5uZl1qkDzJHv7goGcIoKE3KyUzWz8wrSS1KS0xOLdZPysxLycxLL9YH2QUh41OBthXrgTTkgsOHBYgVoPYlMELoBUwQ+gEzqr81YB5jRHWnBCOqvykNNx6ou0Jcg0NAfHkgFscabnpgJejhxgKNd1qFG7HpVAAah+jhQCgcGakUjpxQs8KgfFCeEcEejmHY0h/rIAtHRhLDkYlK4cgNtd/N3x/MlwNiMezhCFaCHo5sgywcmUgMR2Yqh6OTYxChcAQrQQ9H9kEWjsw46pUPBMLLAS28AnCElyA0D6NUalA3CmMNNyOs7uGicz0SAE03E6AJ7QKBegQXoHY9ogANGyzhBq5I0MONm8bpjdh2zEDXG7JALIoj3MKwpDeeQRJug63ewN2OMQJXHOjhyDvIwnGw1Bv4whGkBj0c+QZZOMLCBRAAAP//1ph0oGANAAA=";
 
   // Deserialize RuntimeTypeInfo
   var bytes = BASE64.decode(serializedRuntimeTypeInfo);