patch 8.1.1544: some balloon tests don't run when they can commit https://github.com/vim/vim/commit/b46fecd3454399f8ebdc5055302e4bfc5a10f98b Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 15 17:58:09 2019 +0200 patch 8.1.1544: some balloon tests don't run when they can Problem: Some balloon tests don't run when they can. Solution: Split GUI balloon tests off into a separate file. (Ozaki Kiichi, closes #4538) Change the feature check into a command for consistency.