patch 8.2.1139: Vim9: test for silent echo fails in some environments Commit: https://github.com/vim/vim/commit/8f510afcd616fc62291fb41f9dd03ce298f1c601 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 5 18:48:23 2020 +0200 patch 8.2.1139: Vim9: test for silent echo fails in some environments Problem: Vim9: test for silent echo fails in some environments. Solution: Use :function instead of :def.