collections: DSTify Hash
core: DSTify Equiv
std: Fix breakage of DSTifying Hash
regex: Adapt to changes in signature of HashMap::*_equiv
term: Adapt to changes in signature of HashMap::*_equiv
syntax: Adapt to changes in the signature of HashMap::*_equiv
syntax: Add Sized? to Interner/StrInterner::find_equiv
rustc: Adapt to changes in the signature of HashMap::*_equiv
rustc: Match new signature of Hasher::hash
rustdoc: Adapt to changes in the signature of HashMap::*_equiv
Fix tests