patch 8.2.2134: Vim9: get E1099 when autocmd triggered in builtin function Commit: https://github.com/vim/vim/commit/57f799e6a4a56f41570c752c66dc2f692b1f2c2f Author: Bram Moolenaar <Bram@vim.org> Date: Sat Dec 12 20:42:19 2020 +0100 patch 8.2.2134: Vim9: get E1099 when autocmd triggered in builtin function Problem: Vim9: get E1099 when autocmd triggered in builtin function. Solution: Check that did_emsg increased instead of checking that it changed. (closes #7448)