Bug 649570 - |delete window.NaN| should be a TypeError.  This got fixed...sometime.  Add a a test so we don't regress this in the future.  r=sparky

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extra : rebase_source : 93ddcd629a445afc374b3535ad48af9067e08ff3
Bug 872853 - Move StringToNumberType into jsnum.cpp, now that it's not used anywhere else, and remove jsnuminlines.h.  r=evilpie

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extra : rebase_source : 000e1257af9987c87893efe9c76b9f3d42e9bbe4
Bug 872853 - Make +"0x" evaluate to NaN.  r=evilpie

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extra : rebase_source : ec46e8224922729a7f8ec1bb023f4e6733106c7c