patch 8.2.3178: Vim9: the file name of an :import cannot be an expression Commit: https://github.com/vim/vim/commit/4db572eeb2b42819268e934e76c67163316d873f Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 18 18:21:38 2021 +0200 patch 8.2.3178: Vim9: the file name of an :import cannot be an expression Problem: Vim9: the file name of an :import cannot be an expression. Solution: Accept an expression that results in a string. Do not support :import in a function.