Include fields with their types in the return type annotation when it's a table with known fields

[anaissls]

There are a few functions that return a table with known fields, such as love.filesystem.getInfo(), which in the love api, its return type is a table with the following fields and types: {type:FileType, size:number, modtime:number}.

However, in these cases, the return type is generated as table, with no hints about the fields it has.

This small modification changes the return type in these cases, replacing it with an annotation that includes the fields and its types as defined in the love api:

-- Before
---@return table
---@overload fun(path:string, info:table):table
---@overload fun(path:string, filtertype:FileType?):table
function love.filesystem.getInfo(path, filtertype, info) end

-- After
---@return {type:FileType, size:number, modtime:number}
---@overload fun(path:string, info:table):{type:FileType, size:number, modtime:number}
---@overload fun(path:string, filtertype:FileType?):{type:FileType, size:number, modtime:number}
function love.filesystem.getInfo(path, filtertype, info) end

There are seven of such cases (not including function overloads).

Found the change easy to implement, so I wanted to contribute to this EmmyLua love annotations fork, which seems to be the most up to date.