[Feature Request] Add Lua config file support

There are some Lua files that are used for configuration, such as .busted or *.rockspec files. It would be nice if:

• Any globals defined in them are ignored by default
• Global types and return types can be defined for them in a type definition file

This behavior could all be described by creating a type definition file with a special (config) option next to @meta. The require name is replaced by a Lua pattern that matches the filename or URI. Either that, or it could be specified as a config-specific option using ---@meta (config: PATTERN)

-- library/rockspec.d.lua

---@meta (config) "[%w%.%-%_]+%.rockspec$"

---the rockspec format
---@type string
_G.rockspec_format = nil

---the package name
---@type string
_G.package = nil

---the package version
---@type string
_G.version = nil

---a description of the rock
---@class luarocks.rockspec.description
---@field summary string? -- a short sentence that succinctly describes the rock
---@field description string? -- a paragraph-size description that describes the rock
---@field ...
_G.description = {}

For configurations that require returning a table, you could define a local variable with the right type and return it.

-- library/busted.d.lua

---@meta (config) "%.busted$"

---@class .busted.config
---@field coverage boolean? -- use luacov for coverage
---@field verbose boolean? -- print more things
---@field ...

---a dictionary of Busted configurations. You can specify which one using the
---`--run` option. Uses `default` if no configuration is specified
---@class .busted
---@field default .busted.config?
---@field [string] .busted.config?
local busted_config = {}

return busted_config

まず、提案されている設定固有の @meta 構文と、library/rockspec.d.lua および library/busted.d.lua にある定義例を確認します。設定ファイル名または URI のマッチング方法の選択肢を比較します。Lua 設定ファイルがデフォルトでグローバル変数を無視し、一致する定義ファイルの型定義と戻り値定義を使用できれば完了です。