if table has integer key，when break， show empty table

[xiayong968]

local t = {}
t[1000] = "hi"

---

when break the script，the table t show empty，is it a bug？

[satoren]

That is bug same to #12.

[xiayong968]

i fix it :)

    json::object obj;
    lua_pushnil(L);
    while (lua_next(L, index) != 0) {
      if (lua_type(L, -2) == LUA_TSTRING) {
        const char* key = lua_tostring(L, -2);
        json::value& b = obj[key];
        b = to_json(L, -1, max_recursive - 1);
      } else if (lua_type(L, -2) == LUA_TNUMBER) {
         const char* key = "";
     if (lua_isinteger(L,-2)){
              lua_Integer temp = lua_tointeger(L, -2);	
	  key = int64_to_string(temp);
      }	else{
	   double temp = lua_tonumber(L, -2);
	   key = double_to_string(temp);
	}
            json::value& b = obj[key];
            b = to_json(L, -1, max_recursive - 1);
        }
        lua_pop(L, 1);  // pop value
    }

[TheNormalnij]

      std::string key;
      char buffer[128] = {};

      json::object obj;
      lua_pushnil(L);
      while (lua_next(L, index) != 0) {
        switch (lua_type(L, -2)) {
          case LUA_TBOOLEAN:
            key = lua_toboolean(L, -2) ? "[true]" : "[false]";
            break;
          case LUA_TLIGHTUSERDATA:
            sprintf(buffer, "[lightuserdata: %p]", lua_topointer(L, -2));
            key = buffer;
            break;
          case LUA_TNUMBER:
            lua_pushvalue(L, -2);
            key = "[" + std::string(lua_tostring(L, -1)) + "]";
            lua_pop(L, 1);
            break;
          case LUA_TSTRING: {
            size_t strlLen = 0;
            const char *str = lua_tolstring(L, -2, &strlLen);
            key = std::string{str, strlLen};
            break;
          }
          case LUA_TTABLE:
            sprintf(buffer, "[table: %p]", lua_topointer(L, -2));
            key = buffer;
            break;
          case LUA_TFUNCTION:
            sprintf(buffer, "[function: %p]", lua_topointer(L, -2));
            key = buffer;
            break;
          case LUA_TUSERDATA:
            sprintf(buffer, "[userdata: %p]", lua_topointer(L, -2));
            key = buffer;
            break;
          case LUA_TTHREAD:
            sprintf(buffer, "[thread: %p]", lua_topointer(L, -2));
            key = buffer;
            break;
          default:
            key = "unknown";
            break;
        }

        json::value &b = obj[key];
        b = to_json(L, -1, max_recursive - 1);

        lua_pop(L, 1);  // pop value
      }
      return json::value(obj);

My variant, but it breaks Lua arrays in vscode-lrdb.
Technically, vscode-lrdb might be updated to add numeric keys support.