(v8.x backport) 12712 - util: add util.callbackify()
Refs: https://github.com/nodejs/node/pull/12712
Refs: https://github.com/nodejs/node/pull/13604
Refs: https://github.com/nodejs/node/pull/13705
(#13705 hasn't landed on master
but it's ready)
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)
util