test: refactor test-domain-exit-dispose

change equal to strictEqual, fix setTimeout

PR-URL: nodejs#9938
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Jeremiah Senkpiel <[email protected]>

2015-07-04 io.js v2.3.2 Release

2015-07-04 io.js v1.8.3 Release

2015-07-02 io.js v3.0.0 Release Candidate 2

2015-07-02 io.js v2.3.2 Release

2015-06-30 io.js v3.0.0 Release Candidate 1

doc: Combined TSC

2015-06-23 io.js v2.3.1 Release

2015-06-13 iojs v2.3.0 Release

2015-06-01 io.js v2.2.1 Release