patch 8.2.2477: autocommand tests hang on MS-Windows

Problem:    Autocommand tests hang on MS-Windows.
Solution:   Skip a couple of tests.  Fix file name.
diff --git a/src/testdir/test_autocmd.vim b/src/testdir/test_autocmd.vim
index 3109f88..e4f67f4 100644
--- a/src/testdir/test_autocmd.vim
+++ b/src/testdir/test_autocmd.vim
Binary files differ