tree ae45374cf4d2c269dba497ddf95277d3a2ba41e7
parent 995e157edbea8732769d63c3e0aecd29d6fa9774
author michajlo <michajlo@google.com> 1515531923 -0800
committer Copybara-Service <copybara-piper@google.com> 1515532019 -0800

Stop memoizing Label#hashCode()

Both members of Label (String & PackageIdentifier) have memoized hash codes so
this should be marginally more expensive but probably not noticably so. The
benefit is it makes Label objects smaller in certain vm conditions.

As to why things were the way they were, I believe this is from before
PackageIdentifier memoized its hashCode.

RELNOTES: None
PiperOrigin-RevId: 181362077