patch 9.0.0968: GUI mouse event test is a bit flaky Commit: https://github.com/vim/vim/commit/c13e998d4a82e2c90efb4bbc1dd4ea2d6c424592 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Nov 28 21:20:48 2022 +0000 patch 9.0.0968: GUI mouse event test is a bit flaky Problem: GUI mouse event test is a bit flaky. Solution: Mark the test case as flaky. Move test function failure checks to a separate test function.