Tag handlers as monomorphic

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/444623002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22868 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/code-stubs.h

@@ -901,6 +901,7 @@ class HandlerStub : public HydrogenCodeStub {
  public:
   virtual Code::Kind GetCodeKind() const { return Code::HANDLER; }
   virtual ExtraICState GetExtraICState() const { return kind(); }
+  virtual InlineCacheState GetICState() { return MONOMORPHIC; }
 
  protected:
   explicit HandlerStub(Isolate* isolate)

src/type-info.h

@@ -14,7 +14,6 @@ namespace v8 {
 namespace internal {
 
 // Forward declarations.
-class ICStub;
 class SmallMapList;