"array-like" table can't be natively annotated as enum

How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

Which OS are you using?

Linux

What is the issue affecting?

Annotations, Hover

Expected Behaviour

On hover over action param in my function I'd like to get annotation consistent with already existing annotation that i get if i hover over all in actions.all :

(field) actions.all: {
    [10]: string = "supportAttack",
    [11]: string = "supportDefence",
    [12]: string = "supportBoth",
    [13]: string = "supportAttackPike",
    [14]: string = "supportDefencePike",
    [15]: string = "stanceShieldwall",
    [16]: string = "stanceLastman",
    [17]: string = "stanceBarrage",
    [18]: string = "encamp",
    [19]: string = "uncamp",
    [1]: string = "retreat",
    [20]: string = "destroyCamp",
    [21]: string = "buildFort",
    [22]: string = "demountFort",
    [23]: string = "destroyFort",
    [24]: string = "rest",
    [25]: string = "respire",
    [2]: string = "move",
    [3]: string = "swap",
    [4]: string = "forcedMove",
    [5]: string = "melee",
    [6]: string = "shoot",
    [7]: string = "shoot2",
    [8]: string = "breakthrough",
    [9]: string = "enclosing",
}

Essentially i'd like enum for this array to give the same behavioir as alias like this

---@alias Action
---| '"retreat"'
---| '"move"
---| '"swap"' 
---| '"forcedMove"'
---| '"melee"'
---| '"shoot"'
---| '"shoot2"'
---| '"breakthrough"
---| '"enclosing"'
---| '"supportAttack"'
---| '"supportDefence"'
---| '"supportBoth"'
---| '"supportAttackPike"'
---| '"supportDefencePike"'
---| '"stanceShieldwall"'
---| '"stanceLastman"'
---| '"stanceBarrage"'
---| '"encamp"'
---| '"uncamp"'
---| '"destroyCamp"'
---| '"buildFort"'
---| '"demountFort"'
---| '"destroyFort"'
---| '"rest"'
---| '"respire"'

Actual Behaviour

On hover over action param in my function I get this annotation:

(parameter) action: Action
{
}

Reproduction steps

Consider this minimal code snippet:

local actions = {}

---@enum Action
actions.all = {
  "retreat",
  "move",
  "swap",
  "forcedMove",
  "melee",
  "shoot",
  "shoot2",
  "breakthrough",
  "enclosing",
  "supportAttack",
  "supportDefence",
  "supportBoth",
  "supportAttackPike",
  "supportDefencePike",
  "stanceShieldwall",
  "stanceLastman",
  "stanceBarrage",
  "encamp",
  "uncamp",
  "destroyCamp",
  "buildFort",
  "demountFort",
  "destroyFort",
  "rest",
  "respire",
}

actions.isStance = {stanceShieldwall = true, stanceLastman = true, stanceBarrage = true}

--- @param action Action
--- @return boolean
function actions.IsStance(action)
  return actions.isStance[action]
end

Additional Notes

No response

Log File

No response

Issue 内の最小限の Lua 再現コードから始め、actions.all の @enum アノテーションと Action パラメーターがホバー時にどのように表現されるかを追跡します。その経路を既存の alias の挙動と比較します。Action パラメーターにホバーしたとき、actions.all のホバー結果と一貫して enum の string メンバーが表示されれば完了です。