Apply Lua.org patch

Lua does not check GC when creating error messages.

reported by Viacheslav Usov on 06 Jul 2017. existed since 5.3.2.

Example:
    See https://www.lua.org/bugs.html#5.3.4-4.

src/lua/ldebug.cpp

@@ -653,6 +653,7 @@ l_noret luaG_runerror (lua_State *L, const char *fmt, ...) {
   CallInfo *ci = L->ci;
   const char *msg;
   va_list argp;
+  luaC_checkGC(L);  /* error message uses memory */
   va_start(argp, fmt);
   msg = luaO_pushvfstring(L, fmt, argp);  /* format message */
   va_end(argp);