Bug 1027885 - OdinMonkey: use non-asserting labels (r=sunfish)

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extra : rebase_source : d5cd151417e40196c2734054564acbe872b150b6
Bug 1027885 - OdinMonkey: rename to AsmJSFrameSize, move definition to be closer to use (r=bbouvier)

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extra : rebase_source : 145339db9969a91313f6af63dabf9be518a8faa7
Bug 1027885 - OdinMonkey: hoist the start/end function code (r=bbouvier)

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extra : rebase_source : 29de292af394eba001503d0a5fe68774924bf725