Depends on #36935

The advanced features are:

• static abort(reason)
• static timeout(milliseconds). Depends on Implement run steps after a timeout #36934 Implement run steps after a timeout #39994 Implement abortsignal timeout #40032
• static any(signals)
• garbage collection(I assume this is not a problem with abort signals that are associated with a controller, which is the basic use case covered at Implement AbortSignal basics #36935).