Handle switch continue

pkg/compiler/lib/src/ssa/jump_handler.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 '../common.dart';
 import '../elements/jumps.dart';
 import '../tree/tree.dart' as ast;
 
 import 'graph_builder.dart';
 import 'locals_handler.dart';
@@ skipping 166 matching lines @@
     return label != null && targetIndexMap.containsKey(label.target);
   }
 
   void generateContinue([LabelDefinition label]) {
     if (isContinueToSwitchCase(label)) {
       // Creates the special instructions 'label = i; continue l;' used in
       // switch statements with continue statements. See
       // [SsaFromAstMixin.buildComplexSwitchStatement] for detail.
 
       assert(label != null);
-      // TODO(het): change the graph 'addConstantXXX' to take a ConstantSystem
-      // instead of a Compiler.
       HInstruction value = builder.graph
           .addConstantInt(targetIndexMap[label.target], builder.closedWorld);
       builder.localsHandler.updateLocal(target, value);
 
       assert(label.target.labels.contains(label));
       HInstruction continueInstruction = new HContinue(target);
       LocalsHandler locals = new LocalsHandler.from(builder.localsHandler);
       builder.close(continueInstruction);
       jumps.add(new _JumpHandlerEntry(continueInstruction, locals));
     } else {
@@ skipping 32 matching lines @@
             targetIndexMap[continueTarget] = switchIndex;
             assert(builder.jumpTargets[continueTarget] == null);
             builder.jumpTargets[continueTarget] = this;
           }
         }
       }
       switchIndex++;
     }
   }
 }