Bug 895647 - new GC type: js::LazyScript, r=terrence

DONTBUILD

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extra : rebase_source : 78d019afe1f46c056c561c2faf4dac351ffb4454
Bug 895654 - Remove references to Unrooted from the static exact rooting analysis; r=bhackett,sfink,terrence

DONTBUILD

--HG--
extra : rebase_source : 32046960a39679cf82916dc7d35ea3374de700f8