Fix correctly display enums for function overload arguments#2840

sumneko merged 3 commits intoLuaLS:masterLuaLS/lua-language-server:masterfrom

NeOzay:fix-autocompletion-arg-for-func-overloadNeOzay/lua-language-server:fix-autocompletion-arg-for-func-overloadCopy head branch name to clipboard