Related to #14255.
Fixes #14473.

SemanticModel shouldn’t expose ParameterSymbols parented to an EventSymbol, parameters of the implicitly declared delegate should be returned instead.

Fixes #14364.

Merge VisualStudioSetupInteractive into VisualStudioInteractiveComponents

Make XmlDocumentationProvider public

Fix bad refactoring which could potentially cause a crash.

Fixing up some IVTs.

* Make sure that we notify the workspace hosts when IWorkspaceProjectContext.LastDesignTimeBuildSucceeded is updated.

Fixes #14306

* Ensure that we create an external error reporter per-project ID in the CPSProjectFactory

Fixes #14329

* Fix build errors from prior refactoring

* Further simplify GetExternalErrorReporter

* Fix unit tests.

Enable EE for .NET Native

Downgrade System.ValueTuple to 4.0.1-beta-24425-02

Include .vsdconfig files in Roslyn CoreXT package

Use new base-class to simplify code.

Add a new feature that suggests using an 'out-variable' when possible.

Use the actual severity asked for in 'Use Throw Expression'.

Disable tests failing because of: https://github.com/dotnet/roslyn/issues/14380