test-child-process-ipc broken on unix

[ry]

No description provided.

[bnoordhuis]

Test breaks because it opens stdin with the old net.Stream(fd) interface.

[bnoordhuis]

We need proper stdio support in libuv to fix this. I came up with two hacks but we should fix this properly.

743ccb7 - proxies net.Stream(fd) to the proper stdio stream. There's a chicken and egg problem, process.stdin and process.stdout are created with net.Stream(fd) if stdin/stdout isn't a tty. You can side-step it (I did) but it's not pretty.

2fcab85 - use an IOWatcher from net_legacy.js as a stop-gap measure.

[ry]

this test is working in 02e0a0a