patch 8.1.1167: no test for closing tab by click in tabline commit https://github.com/vim/vim/commit/39f76c6ac0f5e07a0e608ddf920a67702ec83824 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 13 22:13:23 2019 +0200 patch 8.1.1167: no test for closing tab by click in tabline Problem: No test for closing tab by click in tabline. Solution: Add a test. Also fix that dragging window separator could fail in a large terminal. (Dominique Pelle, closes #4253)