stream, http, http2: make all stream.end() call return this
This PR make all the instances of stream.end()
return this. This includes both http and http2 pseudo-writables.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
stream, http, http2