mozilla/rust — pull request #8744 by jld (2013-08-25 06:45:41+00:00)
Title: Use 64-bit integers to represent discriminants

This is in preparation for making discriminants not always be int (#1647), but it also makes compiles for a 64-bit target not behave differently — with respect to how many bits of discriminants are preserved — depending on the build host's word size, which is a nice property to have.

We may want to standardize how to abbreviate "discriminant" in a followup change.