Fix issue 9664.

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

Index: sdk/lib/_internal/compiler/implementation/ssa/builder.dart
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/builder.dart b/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
index 462d0b4e96f6796535359a8b17095268046a21b9..5ac2ea4ad88943840d6c849a2c9740a480c7fcbd 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
@@ -1982,13 +1982,13 @@ class SsaBuilder extends ResolvedVisitor implements Visitor {
       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.