[beta] Final round of beta backports#44062

Merged

bors merged 9 commits intorust-lang:betafrom

alexcrichton:beta-next

Aug 23, 2017

Commits on Aug 23, 2017

make `for_all_relevant_impls` O(1) again

arielb1
authored and
alexcrichton
committed
std: Respect formatting flags for str-like OsStr
alexcrichton
committed
ast_validation: forbid "nonstandard" literal patterns

arielb1
authored and
alexcrichton
committed
register fn-ptr coercion obligations out of a snapshot

arielb1
authored and
alexcrichton
committed
fix other cases of registering obligations in a snapshot

arielb1
authored and
alexcrichton
committed
std: Mark allocation functions as nounwind
alexcrichton
committed
Bump to beta .3
alexcrichton
committed
Ensure that generic arguments don't end up in attribute paths.

jseyfried
authored and
alexcrichton
committed
Fix tests and fallout
alexcrichton
committed