This annotation revealed a number of places where if some part of RQName
generation failed, we'd end up creating RQNode objects with null fields;
trying to convert that to the text would end up crashing. This adds
proper error handling when issues were discovered by analysis.

Simplify the semantic model caching scheme we use to reuse semantic models during typing.

Remove requirement to list all transitively referenced projects in Pr…

Remove requirement to list all transitively referenced projects in ProjectReferences of each project

Merge release/dev16.7 to master

Avoid SoftCrashException from CodeLens data point invalidation calls

Use-site diagnostics for a type should include information for type arguments of contaning types. (#45663)

Fixes #45625.

* Fix parsing of nested verbatim interpolated strings started with @$

* Issue error for alt nested interpolated string in 7.3 or below. Better unit tests and test the error.

Fix "Tuple to Struct" named parameters being cased incorrectly

Do not remove necessary casts in an interpolation

Upgrade dependencies to versions available on azure feeds

Convert MakeMethodSynchronousTests to the new test library

Add code fix for CS0513

Microsoft.Net.Compilers.Toolset
 From Version 3.7.0-4.20324.3 -> To Version 3.8.0-1.20353.1
Co-authored-by: Ndotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

FIx Redundant Cast incorrect for SimpleArguments #44516