Report when multiple values are returned from a function implicitly

Summary of the new feature

I'd like to be able to run a command such that if I implicitly return values as well as have a return statement that it is flagged.

Ex
function fun1 { mkdir (Join-Path $env:TEMP "myFolder"); return $true }

This should produce an error/warning because mkdir (New-Item) is actually returning a value though we also explicitly return $true.

該 issue 未指定任何檔案、測試或進入點。首先檢查 repository 的 analyzer 和測試結構，然後確定在哪裡分析隱式輸出和明確的 return 陳述式。當該範例因回傳多個值而被標記，且現有行為仍由測試涵蓋時，即視為完成。