Build `Microsoft.CodeAnalysis` 3.8.0 as part of roslyn repo

[dagood]

But it also appears like some rolsyn packages are not being built? Microsoft.CodeAnalysis 3.8.0 should have been build as part of roslyn repo, but it's not present. This appears to be a super-package; maybe I can patch roslyn-analzyers to use individual nuget packages?

Hmm. It: https://github.com/dotnet/roslyn/blob/4c195c3ac1974edcefa76774d7a59a2350ec55fa/src/NuGet/Microsoft.CodeAnalysis.Package.csproj
appears to be deliberately disabled: https://github.com/dotnet/roslyn/blob/4c195c3ac1974edcefa76774d7a59a2350ec55fa/src/NuGet/Directory.Build.props#L4

But I don't know why. 😕

It seems to me like it'd be reasonable to try patching <ExcludeFromSourceBuild>false</ExcludeFromSourceBuild> into that proj to get rid of the exclusion and try to build it.

@crummel @dseefeld any ideas?

Originally posted by @dagood in #1849 (comment)

[omajid]

Closing as fixed via #1872