Hoist InstanceMirror.delegate to ObjectMirror.

pkg/compiler/lib/src/mirrors/dart2js_instance_mirrors.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS 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 file.
 
 part of dart2js.mirrors;
 
 abstract class ObjectMirrorMixin implements ObjectMirror {
   InstanceMirror getField(Symbol fieldName) {
     throw new UnsupportedError('ObjectMirror.getField unsupported.');
   }
 
   InstanceMirror setField(Symbol fieldName, Object value) {
     throw new UnsupportedError('ObjectMirror.setField unsupported.');
   }
 
   InstanceMirror invoke(Symbol memberName,
                         List positionalArguments,
                         [Map<Symbol, dynamic> namedArguments]) {
     throw new UnsupportedError('ObjectMirror.invoke unsupported.');
   }
+
+  delegate(Invocation invocation) {
+    throw new UnsupportedError('ObjectMirror.delegate unsupported');
+  }
 }
 
 abstract class InstanceMirrorMixin implements InstanceMirror {
   bool get hasReflectee => false;
 
   get reflectee {
     throw new UnsupportedError('InstanceMirror.reflectee unsupported.');
   }
-
-  delegate(Invocation invocation) {
-    throw new UnsupportedError('InstanceMirror.delegate unsupported');
-  }
 }
 
 InstanceMirror _convertConstantToInstanceMirror(
     Dart2JsMirrorSystem mirrorSystem,
     ConstantExpression constant,
     ConstantValue value) {
 
   if (value.isBool) {
     return new Dart2JsBoolConstantMirror(mirrorSystem, constant, value);
   } else if (value.isNum) {
@@ skipping 246 matching lines @@
       return new Dart2JsBoolConstantMirror.fromBool(mirrorSystem, isDocComment);
     } else if (fieldName == #text) {
       return new Dart2JsStringConstantMirror.fromString(mirrorSystem, text);
     } else if (fieldName == #trimmedText) {
       return new Dart2JsStringConstantMirror.fromString(mirrorSystem,
                                                         trimmedText);
     }
     return super.getField(fieldName);
   }
 }