Handle local functions in kernel_impact.

tests/compiler/dart2js/kernel/impact_test.dart

 // Copyright (c) 2016, 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.
 
 library dart2js.kernel.impact_test;
 
 import 'dart:async';
 import 'package:async_helper/async_helper.dart';
 import 'package:compiler/src/commandline_options.dart';
 import 'package:compiler/src/common.dart';
@@ skipping 45 matching lines @@
   testIfThen();
   testIfThenElse();
   testTopLevelInvoke();
   testTopLevelInvokeTyped();
   testTopLevelField();
   testTopLevelFieldTyped();
   testDynamicInvoke(null);
   testDynamicGet(null);
   testDynamicSet(null);
   testLocalWithInitializer();
+  testLocalFunction();
+  testLocalFunctionInvoke();
+  testLocalFunctionGet();
   testInvokeIndex(null);
   testInvokeIndexSet(null);
   testAssert();
   testAssertWithMessage();
   testFactoryInvoke();
   testFactoryInvokeGeneric();
   testFactoryInvokeGenericRaw();
   testFactoryInvokeGenericDynamic();
 }
 
@@ skipping 81 matching lines @@
   o.f6(8, b: 9);
   o.f7(10, c: 11);
   o.f8(12, b: 13, c: 14);
   o.f9(15, c: 16, b: 17);
 }
 testDynamicGet(o) => o.foo;
 testDynamicSet(o) => o.foo = 42;
 testLocalWithInitializer() {
   var l = 42;
 }
+testLocalFunction() {
+  localFunction() {}
+}
+testLocalFunctionInvoke() {
+  localFunction() {}
+  localFunction();
+}
+testLocalFunctionGet() {
+  localFunction() {}
+  localFunction;
+}
 testInvokeIndex(o) => o[42];
 testInvokeIndexSet(o) => o[42] = null;
 testAssert() {
   assert(true);
 }
 testAssertWithMessage() {
   assert(true, 'ok');
 }
 testFactoryInvoke() {
   new Class.fact();
@@ skipping 75 matching lines @@
         // we cannot tell the diferrence.
         builder.registerFeature(Feature.STRING_INTERPOLATION);
         builder.registerFeature(Feature.STRING_JUXTAPOSITION);
         break;
       default:
     }
   }
   impact.nativeData.forEach(builder.registerNativeData);
   return builder;
 }