Bug 932370 - Fix signed/unsigned comparison warning; r=bustage on a CLOSED TREE

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extra : amend_source : 67b412ef5447b5a554ab0f2e00b39db33accd04b
Bug 937793 - Various new Array tests.  r=bhackett

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extra : rebase_source : 7487f7450c3ad6b52fd1e38cb95eac89cd8ad8c9
Bug 948227 - Make the Object.prototype.__proto__ setter strongly warn against its use, for perf reasons (and suggest Object.create instead).  r=efaust

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extra : rebase_source : 9a08df51a56ae531956c0158fcae18c12ee77539