luaF_getlocalname
name = luaF_getlocalname(ci_func(ci)->p, n, currentpc(ci));
name = luaF_getlocalname(clLvalue(L->top - 1)->p, n, 0);
*name = luaF_getlocalname(p, reg + 1, lastpc);
? luaF_getlocalname(p, t + 1, pc)
LUAI_FUNC const char *luaF_getlocalname (const Proto *func, int local_number,