Access ConstantSystem through ClosedWorld.

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/elements.dart';
 import '../tree/tree.dart' as ast;
 
 import 'builder.dart';
 import 'graph_builder.dart';
@@ skipping 193 matching lines @@
   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.compiler);
+          .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 {
       super.generateContinue(label);
     }
   }
 
   void close() {
     // The mapping from TargetElement to JumpHandler is no longer needed.
     for (JumpTarget target in targetIndexMap.keys) {
       builder.jumpTargets.remove(target);
     }
     super.close();
   }
 }