Make HConstant a bit more compact.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 032ca7691dc6b908cbc09e1b563fc41979d74614..3b01f5761227bdc393e7ad0a755192341f93b288 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -1017,10 +1017,9 @@ void HEnterInlined::PrintDataTo(StringStream* stream) {
 
 HConstant::HConstant(Handle<Object> handle, Representation r)
     : handle_(handle),
-      constant_type_(HType::TypeFromValue(handle)),
       has_int32_value_(false),
-      int32_value_(0),
       has_double_value_(false),
+      int32_value_(0),
       double_value_(0)  {
   set_representation(r);
   SetFlag(kUseGVN);
@@ -1435,7 +1434,7 @@ HType HPhi::CalculateInferredType() {
 
 
 HType HConstant::CalculateInferredType() {
-  return constant_type_;
+  return HType::TypeFromValue(handle_);
 }