Fix issue 9664.

sdk/lib/_internal/compiler/implementation/ssa/builder.dart

 // Copyright (c) 2012, 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.
 
 part of ssa;
 
 /**
  * A special element for the extra parameter taken by intercepted
  * methods. We need to override [Element.computeType] because our
  * optimizers may look at its declared type.
@@ skipping 1964 matching lines @@
       conditionBlock.loopInformation = null;
 
       // Remove the [HLoopBranch] instruction and replace it with
       // [HIf].
       HInstruction condition = conditionExitBlock.last.inputs[0];
       conditionExitBlock.addAtExit(new HIf(condition));
       conditionExitBlock.addSuccessor(elseBlock);
       conditionExitBlock.remove(conditionExitBlock.last);
       HIfBlockInformation info =
           new HIfBlockInformation(
-            wrapExpressionGraph(conditionExpression),
-            wrapStatementGraph(bodyGraph),
-            wrapStatementGraph(elseGraph));
+              wrapExpressionGraph(conditionExpression),
+              wrapStatementGraph(bodyGraph),
+              wrapStatementGraph(elseGraph));
 
-      conditionBlock.setBlockFlow(info, current);
-      HIf ifBlock = conditionBlock.last;
-      ifBlock.blockInformation = conditionBlock.blockFlow;
+      conditionExitBlock.setBlockFlow(info, current);
+      HIf ifBlock = conditionExitBlock.last;
+      ifBlock.blockInformation = conditionExitBlock.blockFlow;
 
       // If the body has any break, attach a synthesized label to the
       // if block.
       if (jumpHandler.hasAnyBreak()) {
         TargetElement target = elements[loop];
         LabelElement label = target.addLabel(null, 'loop');
         label.setBreakTarget();
         SubGraph labelGraph = new SubGraph(conditionBlock, current);
         HLabeledBlockInformation labelInfo = new HLabeledBlockInformation(
                 new HSubGraphBlockInformation(labelGraph),
@@ skipping 3102 matching lines @@
           new HSubGraphBlockInformation(elseBranch.graph));
 
     HBasicBlock conditionStartBlock = conditionBranch.block;
     conditionStartBlock.setBlockFlow(info, joinBlock);
     SubGraph conditionGraph = conditionBranch.graph;
     HIf branch = conditionGraph.end.last;
     assert(branch is HIf);
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }