No warning when assign constant `nil` to required table field

How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

Which OS are you using?

Linux

What is the issue affecting?

Type Checking

Expected Behaviour

Warning when assign constant nil to required table field
as it happens with ordinary variables

Actual Behaviour

Reproduction steps

---@type number
local n

n = nil
n = 1

---@class A
---@field n number

---@type A
local a = { n = nil }

a.n = 1

local NIL = nil
a.n = NIL

-- BUT no warning
a.n = nil -- ?

_ = { a, n }

Additional Notes

Most likely this is a duplicate but I couldn't find the issue

Log File

No response

从 issue 中的 Lua 复现开始，检查表字段赋值的类型检查诊断路径。确认将常量 nil 赋给必需字段 A.n 会产生与将 nil 赋给 n 相同的警告；现有案例和最后的 a.n = nil 示例定义了预期行为。