Preserve Smi representation of non-escaping fields.

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 3b486e7130635676283c95594480712f696765d8..6c54ec332f21d94e93f3d1e4343883f30d3f10e3 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -1728,7 +1728,6 @@ class HForceRepresentation V8_FINAL : public HTemplateInstruction<1> {
 
   DECLARE_CONCRETE_INSTRUCTION(ForceRepresentation)
 
- private:

[Michael Starzinger, 2014/04/25 08:35:10]

Let's keep this constructor private and use HForceRepresentation::New instead,
that gives us implicit constant folding.

[Jarin, 2014/04/25 11:05:07]

Done.

   HForceRepresentation(HValue* value, Representation required_representation) {
     SetOperandAt(0, value);
     set_representation(required_representation);