Improve array find.
Bug 893940 - Intermittent TEST-UNEXPECTED-FAIL | private-browsing-supported/main.testOpenTabWithNonPrivateActiveWindowWithIsPrivateOptionFalse
Merge pull request #1105 from erikvold/893940

Bug 893940 - Intermittent TEST-UNEXPECTED-FAIL | private-browsing-supported/main.testOpenTabWithNonPrivateActiveWindowWithIsPrivateOptionFalse r=@jsantell
Merge pull request #1107 from Gozala/bug/zombie-test@893249

Bug 893249 - Run GC after test case to avoid freezing a process. r=@jsantell
Merge pull request #1063 from Gozala/bug/array-find@887493

Bug 887493 - Improve array find r=@erikvold
Increase overall test run timeout to accommodate
GC cycles between test runs.