Convert UnaryOpStub to a HydrogenCodeStub

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 3a8d242b8c14d5bcceae6e3207ee15526c228f8f..2f3414eb305e9b4e6479042d69ccf264823916bb 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -1137,6 +1137,8 @@ class HGraphBuilder {
 
   HLoadNamedField* AddLoadFixedArrayLength(HValue *object);
 
+  void AddSoftDeoptimize();
+
   class IfBuilder {
    public:
     explicit IfBuilder(HGraphBuilder* builder,
@@ -1417,6 +1419,9 @@ class HGraphBuilder {
                                  ElementsKind kind,
                                  int length);
 
+  HInstruction* BuildUnaryMathOp(
+      HValue* value, Handle<Type> type, Token::Value token);
+
   void BuildCompareNil(
       HValue* value,
       Handle<Type> type,
@@ -1504,8 +1509,6 @@ class HOptimizedGraphBuilder: public HGraphBuilder, public AstVisitor {
 
   bool inline_bailout() { return inline_bailout_; }
 
-  void AddSoftDeoptimize();
-
   void Bailout(const char* reason);
 
   HBasicBlock* CreateJoin(HBasicBlock* first,
@@ -1687,9 +1690,6 @@ class HOptimizedGraphBuilder: public HGraphBuilder, public AstVisitor {
   // to push them as outgoing parameters.
   template <class Instruction> HInstruction* PreProcessCall(Instruction* call);
 
-  static Representation ToRepresentation(TypeInfo info);
-  static Representation ToRepresentation(Handle<Type> type);
-
   void SetUpScope(Scope* scope);
   virtual void VisitStatements(ZoneList<Statement*>* statements);