"Reserved prefixes" rule

Summary of the new feature

A while ago, the PowerShell extension had an issue open on it because

Get-Help Get-AdUser -Online

and

Get-Help Get-AdFoo -Online

(note, Foo is used to make it obvious and I forget what the actual noun was)

Were not giving the same result...

As it turned out, its because Get-AdFoo was from a module from the Gallery... Where Get-AdUser comes from the inbox Active Directory module.

Personally, I think it's quite dodgy to overload such a crucial prefix like Ad and we should warn users that certain prefixes are used already in very critical modules.

Proposed technical implementation details (optional)

A rule that gives a warning that says "you probably shouldn't use this prefix because it's already used by X"

Or something to that effect.

What is the latest version of PSScriptAnalyzer at the point of writing

1.18.0

尚未找出任何實作檔案或測試。先定位現有的 PSScriptAnalyzer 規則進入點，並檢視 PowerShell 命令名稱和模組的表示方式；接著釐清保留前綴的來源、警告行為和驗收標準，再實作或測試該規則。