###Xlua 热补丁
---
```lua
xlua.hotfix = function(cs, field, func)
if func == nil then func = false end
local tbl = (type(field) == 'table') and field or {[field] = func}
for k, v in pairs(t
```lua
...
function metatable:__index(key)
...
local obj = import_type(fqn)
if obj == nil then
-- It might be an assembly, so we load it too.
obj = { ['.fqn'] = fqn }