l_noret luaG_callerror (lua_State *L, const TValue *o) {
  CallInfo *ci = L->ci;
  const char *name = NULL;  /* to avoid warnings */
  const char *kind = funcnamefromcall(L, ci, &name);
  const char *extra = kind ? formatvarinfo(L, kind, name) : varinfo(L, o);
  typeerror(L, o, "call", extra);
}