Bug 834090 - Name unused opcodes more sanely.  r=jorendorff.

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extra : rebase_source : 1ca2f3707aff6c24461d2acadde79b7bbc905225
Bug 788293 - Remove e4x support.  r=jorendorff,terrence,evilpie.

Ding dong!  The witch is dead!

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extra : rebase_source : 7574f5620e303c25120fcfc8ceb2099ad75c8f1b
Bug 836530 followup:  fix tests for new ASCII range.