[master] Update dependencies from dotnet/roslyn

Merge release/dev16.9 to master

* Support global analyzer config levels:
- Read the 'global_level' special key
- Allow conflicting keys in global configs to be resolved by level
- Only warn about conflicts that have the same level
- Automatically treat as global and assign a level of 100 for configs called '.globalconfig'
- Add tests

Update configs for preview 4 snap

Restore caret position when undoing a Complete Statement operation

* Annotate CompilationOutputs

* Handle files added by build but not observed until after the debugging session starts

[Change signature] Fix null reference crash in VB

Fix cross language generate constructor bugs

Do not introduce conditional conversions when they are not legal.

This makes sure correct position is used to determine enclosing binder for the node. Fixes #49997.

Fixes #43400

Use the same type character that the user already uses in their enum

Make change signature more async and remove UI dialogs from the service

The problem here was when we do cycle detection, we tried to look
at the source of the candidate constructor that we are looking at
delegating to. If we are in a cross-language case, the target might
be from metadata via the skeleton reference and we don't have source.
Rather than fixing the code that assumes it's a source method, I'm
making a change that says if the constructor you're delegating to is
in the base type, then we can't create a cycle and can skip the check
entirely.

We tried to locate a constructor to delegate to; in that case we would
grab the types of the constructor and make sure the original call site
actually can use those types. In the cross-language case, we'd mix up
types from different languages. The correct behavior here is to map
the candiate type back to the language of the call site, since it's
the call site's language rules that matter.

Fixes https://github.com/dotnet/roslyn/issues/49850

Set AsynchronousOperationListener audience in Service.props

* Correctly handle default and params arguments in cfg for pattern based disposal

Set EnforceOnBuild values for code style analyzers

Add a debug check to ensure all CodeStyle diagnostic descriptors have EnforceOnBuild custom tag + Fix the missing tag for IDE0043 identified from this assert

Signature Help: Prefer non-obsolete overloads