Improve flaky ACE editor spec
Improve flaky ACE editor spec

The ACE editor JavaScript may not be loaded when the spec
runs evaluateScript. Wait for the editor to load before
attempting to run ACE-specific JavaScript.

dreampet/gitlab,mmkassem/gitlabhq,t-zuehlsdorff/gitlabhq,t-zuehlsdorff/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,axilleas/gitlabhq,jirutka/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,axilleas/gitlabhq,dreampet/gitlab,dreampet/gitlab,jirutka/gitlabhq,iiet/iiet-git,axilleas/gitlabhq,mmkassem/gitlabhq,t-zuehlsdorff/gitlabhq,dreampet/gitlab,iiet/iiet-git,axilleas/gitlabhq,mmkassem/gitlabhq,t-zuehlsdorff/gitlabhq