Problem: fnamemodify() treats ".." and "../" differently.
Solution: Expand ".." properly like how "/.." is treated in 8.2.3388.
(zeertzjq)
closes: vim/vim#152181ee7420460
Problem: Cannot use relative paths as findfile() stop directories.
Solution: Change a relative path to an absolute path.
(zeertzjq)
related: vim/vim#15200closes: vim/vim#15202764526e279
Problem: Stop directory in findfile() doesn't work properly without a
trailing slash.
Solution: Always use fnamencmp(), not fnamecmp().
related: vim/vim#15200
related: vim/vim#15202e6ab23bd4a
Problem: Using common name in tests leads to flaky tests.
Solution: Rename files and directories to be more specific.
3b0d70f4ff
This only includes test_findfile.vim changes.
vim-patch:9.1.0562: tests: inconsistency in test_findfile.vim
Problem: tests: inconsistency in test_findfile.vim, it saves and
restores 'shellslash', but doesn't actually set it
Solution: Set shellslash explicitly (zeertzjq)
closes: vim/vim#15217e7b98ab96e
Co-authored-by: Bram Moolenaar <Bram@vim.org>