Bug 907791 - Suppress some AsmJS rooting non-hazards in the static analysis; r=bhackett,luke

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extra : rebase_source : 9acbb597415c4bf08c978c480262ce5e5dd9c452
Bug 907973 - Suppress an exact rooting non-hazard in ShellObjectMetadataCallback; r=bhackett

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extra : rebase_source : 3c2911f67d14375bc98580fc483cf61498ed8be3