Reland: Bug 577648 - arguments.callee.caller does not work in FF 4 under certain circumstances.

js/src/jsarray.cpp

@@ -1778,8 +1778,8 @@ sort_compare_strings(void *arg, const void *a, const void *b, int *result)
     return JS_TRUE;
 }
 
-static JSBool
-array_sort(JSContext *cx, uintN argc, Value *vp)
+JSBool
+js::array_sort(JSContext *cx, uintN argc, Value *vp)
 {
     jsuint len, newlen, i, undefs;
     size_t elemsize;