… semantic checks

…constant

…l types

…rsion

This change ensures that all work added to the work queue after disconnection is
immediately cancelled.

While it doesn't make sense to still be requesting foreground actions after
cancellation is requested, tracking down all callers of
IForegroundNotificationService to ensure the proper checks are in place can be
tedious. This change treats IForegroundNotificationService as the gatekeeper
for scheduling asynchronous operations, and proactively cancels operations if
requested before adding them to the work queue.

Isolate tests

)

Implements targets that calculate PathMap from SourceRoots and provide extension point for Source Link generator

Update links to Samples.sln location

Merge dev15.7.x to master

…lass (dotnet#25238) (dotnet#25866)

* * Generate Constructor should not copy "protected" from abstract base class (dotnet#25238)

* Changed accessibility, created VB tests (dotnet#25238)

* Changes after code review.

Move Roslyn.sln to newer analyzers (with Dispose rules disabled)

Adding missing completion for switch when clause

UseDefaultLiteral and RemoveUnnecessaryCast shouldn't introduce invalid default literal in pattern or case label

…Regex