commit https://github.com/vim/vim/commit/28fb79db6b52d1154e8dc63d227673648c2fce15 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 9 22:28:33 2016 +0100 patch 7.4.1073 Problem: Alloc_id depends on numbers, may use the same one twice. It's not clear from the number what it's for. Solution: Use an enum. Add a function to lookup the enum value from the name.