Try .Net updates -- HashSet`1.xml refresh for out-of-sync PR 3222

[WilliamAntonRohm]

old PR -- #3222

already merged samples -- dotnet/samples#1533

[WilliamAntonRohm]

@mairaw -- please review these changes.

[mairaw]

Great changes @WilliamAntonRohm. I've left a few comments to be addressed before merging.

[WilliamAntonRohm]

@mairaw -- Maira, I've updated the article per your comments -- please review. As I recall, you mentioned a way to Resolve all conversations at once?

[mairaw]

Some can be automatically resolved when you apply my suggestions via the GitHub UI. Otherwise, you need to resolve them individually.

[mairaw]

Thanks @WilliamAntonRohm. Still not quite ready.

Also trying to make some snippet tags better synced between C# and VB:
dotnet/samples#1861

[WilliamAntonRohm]

@mairaw -- Maira, please review these changes.

[mairaw]

Needs a new build

[mairaw]

There's only one API not working right now: https://review.docs.microsoft.com/en-us/dotnet/api/system.collections.generic.hashset-1.clear?view=netframework-4.8&branch=pr-en-us-3430#code-try-1

I believe with the fix I just made, we should be able to merge this.