Undefined global `var` in a function which has injected `var` into env

Describe the bug
luv -v: LuaJIT 2.1.0-beta3 -- Copyright (C) 2005-2022 Mike Pall. https://luajit.org/

local A = {}

function A.sync(executor)
    local env = getfenv(executor)
    env.await = A.wait
    -- ......
    executor()
end

function A.wait(promise)
    print('go')
end

A.sync(function()
    await() -- Undefined global `await`.
end)

return A

Expected behavior
No Undefined global

If it's hard to fix, how can I trick the server into treating awati as a global variable but not become an item in completion outside the executor function.

在正在執行的 Lua 語言伺服器中使用 Lua 範例重現該報告，並檢查分析器如何處理 getfenv、注入的環境成員和全域診斷。由於 issue 中沒有指定來源檔案或測試，因此首先定位全域分析和補全相關的進入點。完成的標準是：await 在 executor 內不會被回報為未定義，但在 executor 外仍不會出現在補全中。