patch 8.1.0496: no tests for indent files
Problem: No tests for indent files.
Solution: Add a mechanism for running indent file tests. Add a first test
for Vim indenting.
diff --git a/runtime/indent/testdir/vim.in b/runtime/indent/testdir/vim.in
new file mode 100644
index 0000000..ca105f6
--- /dev/null
+++ b/runtime/indent/testdir/vim.in
@@ -0,0 +1,46 @@
+" vim: set ft=vim sw=4 :
+
+" START_INDENT
+
+func Some()
+let x = 1
+endfunc
+
+let cmd =
+\ 'some '
+\ 'string'
+
+" END_INDENT
+
+" START_INDENT
+" INDENT_EXE let g:vim_indent_cont = 6
+
+let cmd =
+\ 'some '
+\ 'string'
+
+" END_INDENT
+
+" START_INDENT
+" INDENT_EXE unlet g:vim_indent_cont
+" INDENT_AT this-line
+func Some()
+let f = x " this-line
+endfunc
+" END_INDENT
+
+" START_INDENT
+" INDENT_NEXT next-line
+func Some()
+ " next-line
+let f = x
+endfunc
+" END_INDENT
+
+" START_INDENT
+" INDENT_PREV prev-line
+func Some()
+let f = x
+" prev-line
+endfunc
+" END_INDENT