WindowTimers: More concrete signature for setTimeout()

[tindzk]

See also issue #49

[sjrd]

Oops, sorry for the delay, here.
Could you please also update similarly setInterval and setImmediate? These 3 should be typed consistently.

[tindzk]

Good call. I just updated my commit.

[sjrd]

LGTM

[lihaoyi]

One thing to take note of is that we're consciously removing this call semantics from the stub:

var timeoutID = window.setTimeout(code, delay); // code in the alternate syntax is a string of code you want to execute after delay milliseconds (using this syntax is not recommended for the same reasons as using eval())

Not that I'd miss it, but I didn't see it discussed, so it's worth bringing up. I say it's totally worth breaking compatibility with the real dom to kill a stupid API

[vendethiel]

I agree. Death to eval (and new Function).