`ExternalScriptInfo` does not have property for `CmdletBinding` like `CmdletInfo`

ExternalScriptInfo object should expose the property for CmdletBinding like CmdletInfo or FunctionInfo.

The only was to find if the ExternalScriptioInfo object has CmdletBinding attribute is to look through the attributes on the ScriptBlock.

But in the case of the following example, it is considered that the object has CmdletBinding with the explicit attribute.

param(
  [parameter()]
  $Path
)

[daxian-dbw]

A more concrete example:

PS:17> cat .\test.ps1
##[CmdletBinding()]
param(
  [parameter()]
  $Path
)
PS:18>
PS:18> gcm .\test.ps1 -Syntax
.\test.ps1 (alias) -> C:\arena\tmp\playground\test.ps1

.\test.ps1 [[-Path] <Object>] [<CommonParameters>]

PS:19> $c = gcm .\test.ps1
PS:20> $c.ScriptBlock.Attributes
PS:21>

We can still get this information by enumerating all parameters from $c.Parameters and try to find a ParameterAttribute from any of them, but that’s just too much efforts. I think it would be nice to add the CmdletBinding property to ExternalScriptInfo, just like CmdletInfo and FunctionInfo.

[vexx32]

@JamesWTruher Yeah that’s part of the point. A scriptblock is considered to have cmdletbinding if:

• It actually has the [CmdletBinding()] attribute, OR
• It has any [Parameter()] attributes on any of its parameters.

In other words, it’s quite a pain to find the information properly without the proper helper properties that are provided on FunctionInfo and CmdletInfo.