Bug 891721 - Add some sanity to the ordering of the tests in browser/base/content/test. r=ttaubert

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extra : rebase_source : 82e076e20b15d6a1518caba5d4f5e3b8618f9050
Bug 891697 - IonMonkey: Make MIRGraph and MBasicBlock's dump methods more useful. r=nbp