Faster to number conversion

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 797b444078d5e838157c77e207a956a4b3d056db..9ce630bc56f90c7369381baf51b37dbdc7a324f5 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -1118,6 +1118,10 @@ class HGraphBuilder {
 
   HValue* AddLoadJSBuiltin(Builtins::JavaScript builtin, HValue* context);
 
+  HValue* TruncateToNumber(HValue* value, Handle<Type>* expected);
+
+  void PushAndAdd(HInstruction* instr);
+
   enum SoftDeoptimizeMode {
     MUST_EMIT_SOFT_DEOPT,
     CAN_OMIT_SOFT_DEOPT
@@ -1666,8 +1670,6 @@ class HOptimizedGraphBuilder: public HGraphBuilder, public AstVisitor {
   // Visit a list of expressions from left to right, each in a value context.
   void VisitExpressions(ZoneList<Expression*>* exprs);
 
-  void PushAndAdd(HInstruction* instr);
-
   // Remove the arguments from the bailout environment and emit instructions
   // to push them as outgoing parameters.
   template <class Instruction> HInstruction* PreProcessCall(Instruction* call);