build/test: setup functional tests using vroom

src/nvim/testdir/test2.in

@@ -1,29 +0,0 @@
-
-This is a test if a URL is recognized by "gf", with the cursor before and
-after the "://".  Also test ":\\".
-
-STARTTEST
-:so small.vim
-/^first
-/tmp
-:call append(0, expand("<cfile>"))
-/^second
-/URL
-:call append(1, expand("<cfile>"))
-:if has("ebcdic")
-: set isf=@,240-249,/,.,-,_,+,,,$,:,~,\
-:else
-: set isf=@,48-57,/,.,-,_,+,,,$,:,~,\
-:endif
-/^third
-/name
-:call append(2, expand("<cfile>"))
-/^fourth
-/URL
-:call append(3, expand("<cfile>"))
-5GdG:wq! test.out
-ENDTEST
-first test for URL://machine.name/tmp/vimtest2a and other text
-second test for URL://machine.name/tmp/vimtest2b. And other text
-third test for URL:\\machine.name\vimtest2c and other text
-fourth test for URL:\\machine.name\tmp\vimtest2d, and other text

src/nvim/testdir/test2.ok

@@ -1,4 +0,0 @@
-URL://machine.name/tmp/vimtest2a
-URL://machine.name/tmp/vimtest2b
-URL:\\machine.name\vimtest2c
-URL:\\machine.name\tmp\vimtest2d