Different function arguments based off a parametre

[Frityet]

It would be really useful to have something like

---@overload fun(x: "one", y: integer)
---@param x "two"
---@param y string
---@param z string
local function func(x, y, z) end

so that

func("one", 43)
func("one", "32") --error
func("two", "32", "blah") -- ok

[carsakiller]

Function overloading and narrowing of the correct overload is already being discussed over in #1456