duplicate-set-field diagnostic when assigning a function to a table field

還沒有人認領這個 Issue。

### How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

### Which OS are you using?

Windows

### What is the issue affecting?

Diagnostics/Syntax Checking

### Expected Behaviour

No diagnostic warning on assignment because the variable has been 'cleared'.

### Actual Behaviour

The two info.func assignments that are "= function" get a Duplicate field 'func' (duplicate-set-field) diagnostic.
The info.func assignment "= l1" does not.
Scope depth does not seem to impact the diagnostic - within the same function.

Assignments to other fields that are string, integer, etc do not get the diagnostic.
FYI - the ".func" is expected in a library I cannot change.

### Reproduction steps

local function l1()
end
local function f1()
local info = {};
do
info = {};
info.notCheckable = true
info.func = function()
-- any code
end
end
info = {};
info.notCheckable = true
info.func = function()
-- any code
end
info = {};
info.notCheckable = true
info.func = l1
end

### Additional Notes

_No response_

### Log File

_No response_

從重現步驟和 Diagnostics/Syntax Checking 子系統中的 duplicate-set-field 診斷開始。比較所提供 Lua 程式碼片段中的三個 info.func 指派，然後找到該診斷現有的測試或實作。當兩個內嵌函式指派不再產生所回報的警告，同時 l1 指派和其他 duplicate-field 檢查仍有涵蓋時，即表示完成。

由索引模型根據 Issue 內容生成。