Problem: Too many delete() calls in tests.
Solution: Use deferred delete where possible.
56564964e6
This includes all changes expect changes in test_startup.vim.
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Tests fail when the float feature is disabled.
Solution: Skip tests that don't work without float support.
5feabe00c4
Cherry-pick Test_ruby_Vim_blob() from patch 8.1.0977 and skip it.
Co-authored-by: Bram Moolenaar <Bram@vim.org>
