Bug 854396 - OdinMonkey: make 'unsigned' not be a subtype of 'extern' (r=sstangl)

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extra : rebase_source : d3edd1114ef097d8bdde537bcfc74ddee77e40d0
Bug 854564 - Fix SPS crash when running asm.js (r=sstangl)

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extra : rebase_source : 17be1e7c2425d9c821981bd3158f97da2d152f2a