Exact classes can have fields injected when used as parameters to funcitons

還沒有人認領這個 Issue。

Love the new exact class! When using it though, I noticed that I could still 'inject' fields into an exact class when it is used as the input to a function. Example:

```
---@class (exact) TestClass
---@field public a number
---@field public b string
---@field public c boolean

---@param test_param TestClass
local function test(test_param)
end

test({a = 1, b = "2", c = true, d = 4})
```
causes no error.

I am not sure if this is intended or not, but I would expect to get an warning like: ```Fields cannot be injected into the reference of `TestClass` for `d`. To do so, use `---@class` for `test_param`.Lua Diagnostics.(inject-field)``` here.

在 lua-language-server 中重現提供的 Lua 程式碼片段，並檢查函式參數型別檢查對 exact-class 的處理。當傳入額外的 d 欄位給 TestClass 時產生所要求的 inject-field 診斷，同時已宣告的 a、b 和 c 欄位仍被接受，即表示完成。

由索引模型根據 Issue 內容生成。