Generic Class: a method does not catch the type

---@class Map<T>
Map = {}

---@param key T
---@return any?
function Map:Find(key) end

---@param key T
---@return boolean
function Map:Contains(key) end

---@param key T
function Map:Erase(key) end

function Map:Clear() end


---@class NumberMap: Map<number>
NumberMap = {}

---@return NumberMap
function NumberMap() end

local map = NumberMap()
map:Find(1)

Reproduce the diagnostic with the generic Map, NumberMap: Map, and map:Find(1) declarations shown in the issue. Start by tracing the Lua language server's generic-class type propagation and inspect how Map:Find resolves its key parameter. Done means the NumberMap specialization is applied when checking Find calls and the resulting diagnostic matches the concrete key type.