Bug 930708 - IonMonkey: Factor out a DoubleEqualsInt32 from DoubleIsInt32 and use it when negative zero is to be treated as zero. r=nbp
Bug 931489 - IonMonkey: Omit NaN checks in LCompareD nodes when the operands are known to be non-NaN. r=nbp
Bug 931489 - IonMonkey: Omit the NaN check for LNotD if range analysis says there are no NaNs. r=nbp