@overload does not cooperate with @alias

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?

Annotations, Diagnostics/Syntax Checking

Expected Behaviour

When I define an @alias, an @overload command should be able to use it.

Actual Behaviour

I receive the error:

`fun` expected. Lua Syntax Check.(luadoc-miss-fun-after-overload)

Reproduction steps

---@alias what fun():"ok"

---@class huh
---@overload what
local huh = {}

Start with the Lua documentation annotation handling for @alias and @overload, using the reproduction in the issue as the first case to run. Trace why @overload what produces the luadoc-miss-fun-after-overload diagnostic. Done means the alias-based overload is accepted without that diagnostic while existing overload syntax remains valid.