Convert UnaryOpStub to a HydrogenCodeStub

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index f80aca1e3cddfb3317ce33a4d08853efdfebf32e..b3a57c06491553ae50ed8aa516d72259ece0f95c 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -1129,6 +1129,10 @@ class HGraphBuilder {
 
   HLoadNamedField* AddLoadFixedArrayLength(HValue *object);
 
+  HValue* AddLoadJSBuiltin(Builtins::JavaScript builtin, HContext* context);
+
+  void AddSoftDeoptimize();
+
   class IfBuilder {
    public:
     explicit IfBuilder(HGraphBuilder* builder,
@@ -1409,6 +1413,9 @@ class HGraphBuilder {
                                  ElementsKind kind,
                                  int length);
 
+  HInstruction* BuildUnaryMathOp(
+      HValue* value, Handle<Type> type, Token::Value token);
+
   void BuildCompareNil(
       HValue* value,
       Handle<Type> type,
@@ -1495,8 +1502,6 @@ class HOptimizedGraphBuilder: public HGraphBuilder, public AstVisitor {
 
   bool inline_bailout() { return inline_bailout_; }
 
-  void AddSoftDeoptimize();
-
   void Bailout(const char* reason);
 
   HBasicBlock* CreateJoin(HBasicBlock* first,
@@ -1676,9 +1681,6 @@ 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);