Bug 1021312 - Wrap strings in CloneNonReflectors. r=mccr8, a=sledru

--HG--
extra : rebase_source : b2c4ef05df3d9d5071666e9743f4628e5b3c6bf9
Bug 1021312 - Use a fresh zone for xpcshell. r=mccr8, a=sledru

--HG--
extra : rebase_source : c144c97127cb1c1fc0cf92d6723031ec23b9855f
Bug 1021312 - Tests. r=mccr8, a=sledru

--HG--
extra : rebase_source : 594219162b58208684d23041c826dcc513a6c0cf