Don't cause VB to load in a C# project and vice-versa.

I have modified some misspellings!

Minor updates to the test runner

Remove -anycpu RIDs in project.json files

Be resilient to when we get an exception while reading metadata.

make us to accept project level build errors as well.

Ensure that we respect source suppressions for IDE analyzer diagnostics (analyzer dependency errors, reading ruleset errors, etc.) (#11343)

Fixes https://github.com/dotnet/roslyn/issues/8877

Add Forced Low Memory Mode feature

so that project system can handle those

These were workarounds for building with Visual Studio 2015 RTM. We
don't support that anymore.

Fixes #8767.

Bring /errorlog output up to SARIF draft 1.0.0-beta.5

previously we rejected those and let project system to deal with it.

with this change, we will show code for those errors if possible as well.

Wait until solution load before we kick off all our nuget work.

Find dependent types more efficiently by storing inheritance info directly in our indices.

Fixes #11255

Fixes #5408

https://github.com/dotnet/roslyn/issues/6149

Unconstruct method if any type arguments are error types