--throw-deprecation, fewer nextTick calls in Writable

[isaacs]

@tjfontaine noticed that a huge amount of nextTick recursion errors were showing up in pummel/test-regress-GH-892. Since the last refactor to the Writable logic, this was also causing a range error. (The warnings had previously been in Readable, but the refactor moved the warning to Writable.write, which triggered a console.error, which calls process.stderr.write, aka Socket.write, etc.)

The first commit adds --throw-deprecation. This flag was very helpful in tracking down the recursion warning. --trace-deprecation was not so helpful, since the recursive nature of the warning caused a range error and blew up the output. It's often good to stop on the first deprecation, print a stack, and quit.

The second commit adds execArgv to the arguments passed to the child proc in pummel/test-regress-GH-892.

The third fixes the actual bug.

[bnoordhuis]

Partial duplicate of #4934?

[isaacs]

#4934 is just a branch that's on top of this one. I'll update them both.

[isaacs]

Updated with comment.

[isaacs]

Taking it over to #4934