TEST [[
---@class <!A!>
---@class B : <?A?>
]]

TEST [[
---@class <!A!>
---@type B|<?A?>
]]

TEST [[
---@class A
local mt = {}
function mt:<!cast!>()
end

---@type A
local obj
obj:<?cast?>()
]]

TEST [[
---@class A
local <!mt!> = {}
function mt:cast()
end

---@type A
local <!obj!>
<?obj?>:cast()
]]

TEST [[
---@type A
local <?obj?>

---@class A
local <!mt!>
]]

TEST [[
---@type A
local obj
obj:<?func?>()

---@class A
local mt
function mt:<!func!>()
end
]]

TEST [[
---@type A
local obj
obj:<?func?>()

local mt = {}
mt.__index = mt
function mt:<!func!>()
end
---@class A
local obj = setmetatable({}, mt)
]]