mozilla/rust — pull request #6172 by Sodel-the-Vociferous (2013-05-02 00:42:29+00:00)
Title: Add constants for trait object fields, and replace "magic numbers" in GEPi() calls with them

I don't know how one would write a separate test for this sort of thing. Building the compiler, and `make check` worked, which should mean I didn't screw anything.