Class-based resources with Export does not show capability

[ThomasNieto]

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest version
• Search the existing issues.

Summary

The PowerShell adapters should inspect class-based resources AST for a static Export() method and set the capability automatically.

Steps to reproduce

• Create a class-based resource with Export() method.
• Run dsc resource list --adapter Microsoft.Dsc/PowerShell

Expected behavior

Export cap is listed

Actual behavior

Export cap is NOT listed

Error details

Environment data

7.6-preview6

Version

3.1-preview6

Visuals

No response

[SteveL-MSFT]

The current code requires the PS Module to advertise its DSC capabilities within the module manifest under PrivateData.PSData.DscCapabilities

We should probably add code such that if that field is empty or doesn't exist, then we perform analysis of the PSClass to see what capabilities it actually implements.

[SteveL-MSFT]

@Gijsreyn is this something you'd want to take on?

[Gijsreyn]

@SteveL-MSFT, I just submitted two separate PRs. Please take a look if you have some time.