Use a proper API key

Remove unused parameters

Fix a couple small errors in the microbuild scripts

MicroBuild validation

Now that the majority of our MicroBuild steps are in the open we can verify them at commit time.  This will guard us against more late night scrambles to fix the official build.

Batch sign tool for speeding up our signed build time.

List versions of all dependencies in Dependencies.props

Fix a race condition in the analyzer driver when multiple threads attempt to execute actions on the same declaration (#12385)

Currently, we ensure that only one thread will ever execute any given analyzer action for a particular symbol/declaration. However, while a particular thread is executing actions and another thread attempts to start executing actions for the same symbol, it will bail out and end up marking the symbol event as complete, corrupting the state tracking for actions currently being executed on the other thread. Fix is to ensure that we attempt to mark the event as complete only if there are no pending actions being executed for the event.

Fixes VSO Watson [237576](https://devdiv.visualstudio.com/DevDiv/_workitems?_a=edit&id=237576&triage=true)

Update TestRunner.cs

Merge microupdate into master

Fix span mapping in completion commit

Throw BadImageFormatException decoding TypeRef with resolution scope with nil ModuleRef or TypeRef

Remove WellKnownType.Last and rename WellKnownType.Available to NextAvailable

Move Microsoft.DiaSymReader.PortablePdb out of Roslyn repo