"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

尚未确定任何实现文件或测试。首先定位现有的 PSScriptAnalyzer 规则入口点，并检查 PowerShell 命令名称和模块的表示方式；然后明确保留前缀的来源、警告行为和验收标准，再实现或测试该规则。