Feature Request: Support array table diagnose when a constant variable as key in lua 5.4

How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

Which OS are you using?

Windows

What is the issue affecting?

Diagnostics/Syntax Checking

Expected Behaviour

It would be nice if when trying to use a constant variable as key of array the hint is also right. Thanks

`local ONE_INDEX = 1

---@class Test
---@field [1] math
local _M = {
math
}

-- hint the math
_M[ONE_INDEX].floor(1.1)`

Actual Behaviour

can't recognize the object

Reproduction steps

Empty

Additional Notes

No response

Log File

No response

まず VS Code extension で Lua 5.4 の例を再現し、 変数を使ったインデックス付けの診断または型推論の経路を追跡します。language server が _M[ONE_INDEX] を注釈付き配列エントリとして認識し、無関係なリグレッションなしに期待されるヒントを提供できれば完了です。