Propagate variable rename.

pkg/compiler/lib/src/ssa/builder_kernel.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 '../common/codegen.dart' show CodegenRegistry, CodegenWorkItem;
 import '../common/names.dart';
@@ skipping 2682 matching lines @@
   // will be used, but for loops we will add (unnecessary) phis that will
   // reference the body variables. This makes it look as if the variables were
   // used in a non-dominated block.
   LocalsHandler originalSavedLocals;
 
   TryCatchFinallyBuilder(this.kernelBuilder) {
     tryInstruction = new HTry();
     originalSavedLocals = new LocalsHandler.from(kernelBuilder.localsHandler);
     enterBlock = kernelBuilder.openNewBlock();
     kernelBuilder.close(tryInstruction);
-    previouslyInTrySequence = kernelBuilder.inTryStatement;
+    previouslyInTryStatement = kernelBuilder.inTryStatement;
     kernelBuilder.inTryStatement = true;
 
     startTryBlock = kernelBuilder.graph.addNewBlock();
     kernelBuilder.open(startTryBlock);
   }
 
   void _addExitTrySuccessor(successor) {
     if (successor == null) return;
     // Iterate over all blocks created inside this try/catch, and
     // attach successor information to blocks that end with
@@ skipping 162 matching lines @@
     // blocks.
     kernelBuilder.localsHandler = originalSavedLocals;
     kernelBuilder.open(exitBlock);
     enterBlock.setBlockFlow(
         new HTryBlockInformation(
             kernelBuilder.wrapStatementGraph(bodyGraph),
             exception,
             kernelBuilder.wrapStatementGraph(catchGraph),
             kernelBuilder.wrapStatementGraph(finallyGraph)),
         exitBlock);
-    kernelBuilder.inTryStatement = previouslyInTrySequence;
+    kernelBuilder.inTryStatement = previouslyInTryStatement;
   }
 }