http2: destroy() stream, upon errnoException

First steps towards #19060

Backport-PR-URL: #20456
PR-URL: #19389
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

Author: SirR4T

lib/internal/http2/core.js

@@ -1647,7 +1647,7 @@ class Http2Stream extends Duplex {
     req.async = false;
     const err = createWriteReq(req, handle, data, encoding);
     if (err)
-      throw util._errnoException(err, 'write', req.error);
+      return this.destroy(util._errnoException(err, 'write', req.error), cb);
     trackWriteState(this, req.bytes);
   }
 
@@ -1690,7 +1690,7 @@ class Http2Stream extends Duplex {
     }
     const err = handle.writev(req, chunks);
     if (err)
-      throw util._errnoException(err, 'write', req.error);
+      return this.destroy(util._errnoException(err, 'write', req.error), cb);
     trackWriteState(this, req.bytes);
   }