patch 9.1.0228: Two unrelated things are tested by a single test

Problem:  Two unrelated things are tested by a single test.
Solution: Split it into two, restoring the old Test_brace_single_line().
          Add missing cleanup to some tests.
          (zeertzjq)

closes: #14323

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_normal.vim b/src/testdir/test_normal.vim
index 3a7248f..14440fb 100644
--- a/src/testdir/test_normal.vim
+++ b/src/testdir/test_normal.vim
@@ -4174,7 +4174,20 @@
   norm! z9765405999999999999
 endfunc
 
-" Test for { and } paragraph movements and Ctrl-B in buffer with a single line
+" Test for { and } paragraph movements in a single line
+func Test_brace_single_line()
+  new
+  call setline(1, ['foobar one two three'])
+  1
+  norm! 0}
+
+  call assert_equal([0, 1, 20, 0], getpos('.'))
+  norm! {
+  call assert_equal([0, 1, 1, 0], getpos('.'))
+  bw!
+endfunc
+
+" Test for Ctrl-B/Ctrl-U in buffer with a single line
 func Test_single_line_scroll()
   CheckFeature textprop
 
@@ -4183,12 +4196,7 @@
   let vt = 'virt_above'
   call prop_type_add(vt, {'highlight': 'IncSearch'})
   call prop_add(1, 0, {'type': vt, 'text': '---', 'text_align': 'above'})
-  1
-  norm! 0}
-
-  call assert_equal([0, 1, 20, 0], getpos('.'))
-  norm! {
-  call assert_equal([0, 1, 1, 0], getpos('.'))
+  call cursor(1, 1)
 
   " Ctrl-B/Ctrl-U scroll up with hidden "above" virtual text.
   set smoothscroll
@@ -4203,6 +4211,7 @@
 
   set smoothscroll&
   bw!
+  call prop_type_delete(vt)
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab nofoldenable
diff --git a/src/testdir/test_scroll_opt.vim b/src/testdir/test_scroll_opt.vim
index 788870f..d7a7907 100644
--- a/src/testdir/test_scroll_opt.vim
+++ b/src/testdir/test_scroll_opt.vim
@@ -738,6 +738,7 @@
   let &mouse = save_mouse
   let &term = save_term
   let &ttymouse = save_ttymouse
+  bwipe!
 endfunc
 
 " this was dividing by zero
@@ -999,9 +1000,8 @@
 endfunc
 
 func Test_smoothscroll_page()
-  set smoothscroll
-
-  10split | 40vsplit
+  call NewWindow(10, 40)
+  setlocal smoothscroll
   call setline(1, 'abcde '->repeat(150))
 
   exe "norm! \<C-F>"
@@ -1038,7 +1038,7 @@
   exe "norm! \<C-U>"
   call assert_equal(0, winsaveview().skipcol)
 
-  set smoothscroll&
+  bwipe!
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index 7acc24d..2a996a1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    228,
+/**/
     227,
 /**/
     226,