Make Clang 3.0 happy about static cast in DoGenerateCode.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/453973002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22998 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/code-stubs-hydrogen.cc

@@ -251,8 +251,7 @@ Handle<Code> HydrogenCodeStub::GenerateLightweightMissCode() {
 template <class Stub>
 static Handle<Code> DoGenerateCode(Stub* stub) {
   Isolate* isolate = stub->isolate();
-  CodeStub::Major  major_key =
-      static_cast<HydrogenCodeStub*>(stub)->MajorKey();
+  CodeStub::Major major_key = static_cast<CodeStub*>(stub)->MajorKey();
   CodeStubInterfaceDescriptor* descriptor =
       isolate->code_stub_interface_descriptor(major_key);
   if (!descriptor->IsInitialized()) {