Fix tuple instances for IterBytes to avoid ICE, fixes #4092#4095

Merged

brson merged 3 commits intorust-lang:incomingfrom

rntz:tuple-iterbytes

Dec 5, 2012

Commits on Nov 28, 2012

libcore/to_bytes.rs: add IterBytes impls for pairs and triples
rntz
committed

Commits on Dec 2, 2012

libcore/to_bytes.rs: fix IterBytes instances for pairs, triples to not cause ICE when used
rntz
committed

Commits on Dec 3, 2012

call out to iter_bytes_{2,3} in IterBytes instances for pairs, triples
rntz
committed