When HBranch sees Smi, it sees Smi.

R=mvstanton@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17064006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15159 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/hydrogen-instructions.cc

@@ -1286,7 +1286,7 @@ Representation HBranch::observed_input_representation(int index) {
   } else if (expected_input_types_.Contains(ToBooleanStub::HEAP_NUMBER)) {
     return Representation::Double();
   } else if (expected_input_types_.Contains(ToBooleanStub::SMI)) {
-    return Representation::Integer32();
+    return Representation::Smi();
   } else {
     return Representation::None();
   }