Generic class constructors returning raw `self` type

[SylviBlossom]

As of the recent EmmyLua update (0.22.0) on Visual Studio Code, constructing a generic class (via the constructor attribute) now occassionally returns the self type, instead of its actual type.

This seems to happen if the class's generic type is used in its constructor's parameters.

-- Generic class taking a string in its constructor

---@class ClassA<T>
local ClassA = class("ClassA")

---@param str string
function ClassA:init(str) end


-- Generic class with its generic passed to its constructor

---@class ClassB<T>
local ClassB = class("ClassB")

---@param value T
function ClassB:init(value) end


local a = ClassA("I'm ClassA") -- ClassA<T>
local b = ClassB("I'm ClassB") -- self

In this example, b should be ClassB<string> (or at least some form of ClassB).

[xuhuanzy]

Minimal Complete Reproducible Code

[SylviBlossom]

Sorry, forgot to add the meta function

---@generic T
---@[constructor("init")]
---@param class `T`
---@return T
function class(class) return {} end


-- Generic class taking a string in its constructor

---@class ClassA<T>
local ClassA = class("ClassA")

---@param str string
function ClassA:init(str) end


-- Generic class with its generic passed to its constructor

---@class ClassB<T>
local ClassB = class("ClassB")

---@param value T
function ClassB:init(value) end


local a = ClassA("I'm ClassA") -- ClassA<T>
local b = ClassB("I'm ClassB") -- self

[xuhuanzy]

            ---@generic T
            ---@param value T
            ---@return ClassB<T>
            function ClassB:init(value) end

            local b = ClassB("I'm ClassB") -- ClassB<string>

#1017 Changed the constructor parameters. It now prioritizes a defined @return, and falls back to self only when none is provided.