test: verify sending net.Server via cluster

[cjihrig]

This test verifies that a net.Server instance can be sent via cluster workers.

This adds a regression test for #15556.

Fixes: #15556
Refs: #14221

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• commit message follows commit guidelines

Affected core subsystem(s)

test

[lpinca]

CI: https://ci.nodejs.org/job/node-test-pull-request/10272/

[lpinca]

There are some failures on Windows:

not ok 64 parallel/test-cluster-send-net-server
---
duration_ms: 0.295
severity: fail
stack: |-
net.js:1280
err = handle.bind6('::', port);
^
TypeError: handle.bind6 is not a function
at Object.createServerHandle [as _createServerHandle] (net.js:1280:20)
at new SharedHandle (internal/cluster/shared_handle.js:18:16)
at queryServer (internal/cluster/master.js:288:29)
at Worker.onmessage (internal/cluster/master.js:244:5)
at ChildProcess.onInternalMessage (internal/cluster/utils.js:42:8)
at emitTwo (events.js:130:20)
at ChildProcess.emit (events.js:213:7)
at emit (internal/child_process.js:791:12)
at _combinedTickCallback (internal/process/next_tick.js:141:11)
at process._tickCallback (internal/process/next_tick.js:180:9)

[BridgeAR]

Ping @cjihrig

[cjihrig]

Closing. If anyone wants to pick this up and finish the Windows piece, feel free.