Hoist InstanceMirror.delegate to ObjectMirror.

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

Index: pkg/compiler/lib/src/mirrors/dart2js_instance_mirrors.dart
diff --git a/pkg/compiler/lib/src/mirrors/dart2js_instance_mirrors.dart b/pkg/compiler/lib/src/mirrors/dart2js_instance_mirrors.dart
index b29b582229bfcab7dfee5ea5110b60c476ebc3e9..9a2cbe29423176e09a923f8680d2f1c79c98bf97 100644
--- a/pkg/compiler/lib/src/mirrors/dart2js_instance_mirrors.dart
+++ b/pkg/compiler/lib/src/mirrors/dart2js_instance_mirrors.dart
@@ -18,6 +18,10 @@ abstract class ObjectMirrorMixin implements ObjectMirror {
                         [Map<Symbol, dynamic> namedArguments]) {
     throw new UnsupportedError('ObjectMirror.invoke unsupported.');
   }
+
+  delegate(Invocation invocation) {
+    throw new UnsupportedError('ObjectMirror.delegate unsupported');
+  }
 }
 
 abstract class InstanceMirrorMixin implements InstanceMirror {
@@ -26,10 +30,6 @@ abstract class InstanceMirrorMixin implements InstanceMirror {
   get reflectee {
     throw new UnsupportedError('InstanceMirror.reflectee unsupported.');
   }
-
-  delegate(Invocation invocation) {
-    throw new UnsupportedError('InstanceMirror.delegate unsupported');
-  }
 }
 
 InstanceMirror _convertConstantToInstanceMirror(