* fill out the visitor for BoundMethodGroup

* add vb tests and yield in c# test

Fix option race causing crashes

Fix name lookup through an unbound generic type.

We were grabbing the list of subscriptions before scheduling the event
back to the UI thread. This meant we might raise events on the UI thread
for somebody who has already unsubscribed on the UI thread.

Fixes #13862.

Harden ParseEmbeddedStatement

Merge the feature 'throw expressions' into master
Fixes #13745.

make VS not crash when service hub failed to launch

The consumers of ParseEmbeddedStatement depend on it having a non-null return.  Yet it directly returns the result of ParseStatementCore which can validly return null values in error conditions.  In the case that does happen return an empty statement with a diagnostic.

Ensure proper validation of operator signatures when tuple types are involved.

Fixes #11986.
Fixes #11530.

Run release PR jobs automatically

Fix for incorrect async capture analysis when 32+ variables and branches are involved

Update loc-strings, and add a comment to recent style work.

made InProcRemoteHostClient work again for testing remote host code

Merge master into features/throwexpr

When pending a branch, the state must be cloned. Otherwise we might continue mutating the state after pending it.

Cloning of control flow state is a no-op since it is a struct.
For data flow states cloning is a no-op for small states with <32 locals since the first 31 locals are tracked "inline".
Cloning large ones is observable because the extra bits are stored in a lazy allocated array, forgetting to clone results in unwanted sharing of those bits across various pended and actual states.

Fixes: https://github.com/dotnet/roslyn/issues/13867

Eliminate Debug vs. Release behavior difference in tests.

Only put the block header chain in the indent guide

Fixes #13901.
Related to #13900, which tracks the root product issue.

Implement refactorings (extract method/introduce local) suggested during code review.

We weren't doing this for a long time due to machine scalability issues.
Those don't exist anymore.

Fixes #9222.

Add CodeStyle option to allow users to customize the 'Invoke Delegate With Conditional Access' analyzer.

Improve location of ERR_ParamUnassigned error for local functions.

* Fix data flow analysis for using variables
Fixes #9581

* Add a requested test for cyclic inference in using statements.