Remove unused StubType's, freeing 2 bits in Code objects.

src/ia32/stub-cache-ia32.cc

Index: src/ia32/stub-cache-ia32.cc
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index a3be0a777739e071980b4b57e73138768573f38e..16c2a18f5a1fa61a2827b7aa6099aebea1a53aaf 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -1671,7 +1671,7 @@ Handle<Code> CallStubCompiler::CompileCallField(Handle<JSObject> object,
   GenerateMissBranch();
 
   // Return the generated code.
-  return GetCode(Code::FIELD, name);
+  return GetCode(Code::FAST, name);
 }
 
 
@@ -2752,7 +2752,7 @@ Handle<Code> CallStubCompiler::CompileCallConstant(
     Handle<Code> code = CompileCustomCall(object, holder,
                                           Handle<Cell>::null(),
                                           function, Handle<String>::cast(name),
-                                          Code::CONSTANT);
+                                          Code::FAST);
     // A null handle means bail out to the regular compiler code below.
     if (!code.is_null()) return code;
   }
@@ -2820,7 +2820,7 @@ Handle<Code> CallStubCompiler::CompileCallInterceptor(Handle<JSObject> object,
   GenerateMissBranch();
 
   // Return the generated code.
-  return GetCode(Code::INTERCEPTOR, name);
+  return GetCode(Code::FAST, name);
 }
 
 
@@ -2907,7 +2907,7 @@ Handle<Code> StoreStubCompiler::CompileStoreCallback(
   __ TailCallExternalReference(store_callback_property, 4, 1);
 
   // Return the generated code.
-  return GetCode(kind(), Code::CALLBACKS, name);
+  return GetCode(kind(), Code::FAST, name);
 }
 
 
@@ -2923,7 +2923,7 @@ Handle<Code> StoreStubCompiler::CompileStoreCallback(
       masm(), call_optimization, receiver(), scratch1(), 1, values);
 
   // Return the generated code.
-  return GetCode(kind(), Code::CALLBACKS, name);
+  return GetCode(kind(), Code::FAST, name);
 }
 
 
@@ -2990,7 +2990,7 @@ Handle<Code> StoreStubCompiler::CompileStoreInterceptor(
   __ TailCallExternalReference(store_ic_property, 4, 1);
 
   // Return the generated code.
-  return GetCode(kind(), Code::INTERCEPTOR, name);
+  return GetCode(kind(), Code::FAST, name);
 }
 
 
@@ -3035,7 +3035,7 @@ Handle<Code> LoadStubCompiler::CompileLoadNonexistent(
   __ ret(0);
 
   // Return the generated code.
-  return GetCode(kind(), Code::NONEXISTENT, name);
+  return GetCode(kind(), Code::FAST, name);
 }