Additional test fixes:
- test_macvim:
- remove check.vim import which is now done automatically
- test_gui:
- Test_Buffers_Menu add conditional check to not run the
LoadBufferMenu autocmd since in MacVim we don't use it.
- Test_scrollbars remove go-k from the guioptions, due to MacVim's
implementation being async compared to normal GVim. May need to
revisit this in the future.
Also fix code indentation for MacVim-specific code to pass the new
Test_indent_of_source_files() test in test_codestyle.vim.
5e0c33363e
