Put direct code pointers into JSFunction objects. This is a first step...

src/bootstrapper.cc

Index: src/bootstrapper.cc
===================================================================
--- src/bootstrapper.cc	(revision 5232)
+++ src/bootstrapper.cc	(working copy)
@@ -470,6 +470,7 @@
   Handle<Code> code =
       Handle<Code>(Builtins::builtin(Builtins::EmptyFunction));
   empty_function->set_code(*code);
+  empty_function->shared()->set_code(*code);
   Handle<String> source = Factory::NewStringFromAscii(CStrVector("() {}"));
   Handle<Script> script = Factory::NewScript(source);
   script->set_type(Smi::FromInt(Script::TYPE_NATIVE));
@@ -1545,6 +1546,8 @@
     Handle<SharedFunctionInfo> shared
         = Handle<SharedFunctionInfo>(function->shared());
     if (!EnsureCompiled(shared, CLEAR_EXCEPTION)) return false;
+    // Set the code object on the function object.
+    function->set_code(function->shared()->code());
     builtins->set_javascript_builtin_code(id, shared->code());
   }
   return true;