Allow selection in move type to file

Rename variable

Fix crash when moving type from global namespace

Add a comment explaining the recently added cycle detection code and its relation to the language specification. (#38784)

port typescript's remote syntactic classification tagger for A/B testing

Fixes #38571

Fixes #38679

* Both columns added

* Genericize custom column names

* More changes to genericize

* Cleanup

* Respond to feedback

* WIP

* Change tuple to properties

* Restrict to just containing types

* Cleanup

* cleanup

* Refactor

* Change method for getting Containing Type and Member

* refactor GetAdditionalProperties

* Fix merge conflicts

* respond to feedback

* respond to feedback

* Change to struct

* Add type for AbstractCustomColumnDefinitionWithMultipleValues

* Cleanup

* Change AdditionalProperty to FindUsagesProperty

* respond to feedback

* respond to feedback

* Hide columns in F#

* respond to feedback

* fix merge conflict

* Change from hiding columns to removing columns for non supported langs

* Add additional implementations

* formatting

Add latest features

Make OrganizeImportsService public

Add ETW events for recovering syntax trees

Fix typo and add richer info to rename test failure message

Update immutable arrays of symbols in the NullabilityRewriter

Fixes #38735.

Use IContentType.IsOfType when checking for content type matches

Change the Using organizer to not use ElasticTrivia for the NewLine

Fixes #38711.

Co-Authored-By: NSam Harwell <sam@tunnelvisionlabs.com>