http2: Http2Stream#close() sends no RST_STREAM when an 'aborted' listener destroys the stream #66306

Found while investigating an undici bug...

closeStream() sets STREAM_FLAGS_CLOSED, then emits 'aborted' synchronously before calling finishCloseStream(). If a listener destroys the stream, _destroy() skips its own RST because this.closed is already true, and destroys the handle. submitRstStream() then finds no handle and no RST_STREAM is sent. The peer's stream stays open until the session closes.

stream.pipeline(src, http2Stream) triggers this by itself: Http2Stream has autoDestroy: false, so eos listens for 'aborted' and destroys on it.