Handle labelled continue statements

pkg/compiler/lib/src/ssa/kernel_ast_adapter.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.
 
 import 'package:kernel/ast.dart' as ir;
 
 import '../closure.dart';
 import '../common.dart';
 import '../compiler.dart';
 import '../constants/expressions.dart';
@@ skipping 539 matching lines @@
 
     if (makeContinueLabel) {
       labels.add(
           new LabelDefinitionX(null, 'L${index++}', this)..setContinueTarget());
       isContinueTarget = true;
     }
   }
 
   @override
   LabelDefinition<ast.Node> addLabel(ast.Label label, String labelName,
-      {bool isBreakTarget: false}) {
+      {bool isBreakTarget: false, bool isContinueTarget: false}) {
     LabelDefinitionX result = new LabelDefinitionX(label, labelName, this);
     labels.add(result);
     if (isBreakTarget) {
       result.setBreakTarget();
     }
+    if (isContinueTarget) {
+      result.setContinueTarget();
+    }
     return result;
   }
 
   @override
   ExecutableElement get executableContext => null;
 
   @override
   MemberElement get memberContext => null;
 
   @override
   bool get isSwitch => targetStatement is ir.SwitchStatement;
 
+  bool get isSwitchCase => targetStatement is ir.SwitchCase;
+
   @override
   bool get isTarget => isBreakTarget || isContinueTarget;
 
   @override
   List<LabelDefinition<ast.Node>> labels;
 
   @override
   String get name => 'target';
 
   @override
@@ skipping 140 matching lines @@
   TypeMask selectorTypeOf(Selector selector, TypeMask mask) {
     return TypeMaskFactory.inferredTypeForSelector(
         selector, mask, _globalInferenceResults);
   }
 
   TypeMask typeFromNativeBehavior(
       native.NativeBehavior nativeBehavior, ClosedWorld closedWorld) {
     return TypeMaskFactory.fromNativeBehavior(nativeBehavior, closedWorld);
   }
 }