Properly assign heapobject to constant functions.

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17406009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15245 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/property.h

@@ -112,7 +112,7 @@ class ConstantFunctionDescriptor: public Descriptor {
                              JSFunction* function,
                              PropertyAttributes attributes)
       : Descriptor(key, function, attributes, CONSTANT_FUNCTION,
-                   Representation::Tagged()) {}
+                   Representation::HeapObject()) {}
 };