discard-returns warning is not triggered in while/repeat loops

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?

Annotations

### Expected Behaviour

@nodiscard annotated functions should always trigger the `discard-return`s warning in any context.

### Actual Behaviour

`discard-returns` does not trigger in _while_ and _repeat_ loops.

### Reproduction steps

```lua

---@nodiscard
local function bar()
--@nodiscard annotated function
end

while true do
bar() --< this DOES NOT trigger no-discard
break
end

repeat
bar() --< this DOES NOT trigger no-discard
break
until true

bar() -- < this DOES trigger no-discard

for index, value in ipairs({}) do
bar() -- < this DOES trigger no-discard
end
```

### Additional Notes

_No response_

### Log File

_No response_

使用報告中的 Lua 程式碼片段在 Visual Studio Code 擴充功能中重現問題，然後追蹤 discard-returns 警告如何處理 while 和 repeat 迴圈，並將其與直接呼叫和 for 迴圈進行比較。當兩種迴圈形式中的 @nodiscard 呼叫都能像其他情境一樣一致地觸發警告時，即視為完成。

由索引模型根據 Issue 內容生成。