Similarly to how Show.fromToString have been recently made null safe (#4689 and #4790), I propose making Hash.fromUniversalHashCode also null safe. Specifically, I think it should use x.## instead of x.hashCode(). (The eqv method is already fine, as it uses ==.)
Similarly to how
Show.fromToStringhave been recently made null safe (#4689 and #4790), I propose makingHash.fromUniversalHashCodealso null safe. Specifically, I think it should usex.##instead ofx.hashCode(). (Theeqvmethod is already fine, as it uses==.)