Handle variable set in inferrer

tests/compiler/dart2js/inference/data/locals.dart

Index: tests/compiler/dart2js/inference/data/locals.dart
diff --git a/tests/compiler/dart2js/inference/data/locals.dart b/tests/compiler/dart2js/inference/data/locals.dart
index 6b19bc3039762a03209ce074b211bab2f6ac931e..eefa25bc290d58285c4b98390bf65bfb9cb30877 100644
--- a/tests/compiler/dart2js/inference/data/locals.dart
+++ b/tests/compiler/dart2js/inference/data/locals.dart
@@ -6,6 +6,7 @@
 main() {
   uninitializedLocal();
   initializedLocal();
+  updatedLocal();
 }
 
 /*element: uninitializedLocal:[null]*/
@@ -19,3 +20,10 @@ initializedLocal() {
   var local = 0;
   return local;
 }
+
+/*element: updatedLocal:[exact=JSUInt31]*/
+updatedLocal() {
+  var local2;
+  local2 = 0;
+  return local2;
+}