"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

Comienza con la reproducción mínima en Lua del issue y sigue cómo se representan al pasar el cursor la anotación @enum de actions.all y el parámetro Action. Compara ese recorrido con el comportamiento existente de los alias. Se considera terminado cuando al pasar el cursor sobre el parámetro Action se muestran los miembros string del enum de forma coherente con el resultado al pasar el cursor sobre actions.all.