patch 9.1.0860: tests: mouse_shape tests use hard code sleep value

Problem:  tests: mouse_shape tests use hard code sleep value
          (Bram Moolenaar)
Solution: Use WaitForAssert() instead (Yee Cheng Chin)

related: #12157
closes: #16042

Signed-off-by: Yee Cheng Chin <ychin.git@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_normal.vim b/src/testdir/test_normal.vim
index 32050ce..6dd3fac 100644
--- a/src/testdir/test_normal.vim
+++ b/src/testdir/test_normal.vim
@@ -3948,8 +3948,7 @@
   END
   call writefile(lines, 'Xmouseshape.vim', 'D')
   call RunVim([], [], "-g -S Xmouseshape.vim")
-  sleep 300m
-  call assert_equal(['busy', 'arrow'], readfile('Xmouseshapes'))
+  call WaitForAssert({-> assert_equal(['busy', 'arrow'], readfile('Xmouseshapes'))}, 300)
 
   call delete('Xmouseshapes')
 endfunc
@@ -3980,8 +3979,7 @@
   END
   call writefile(lines, 'Xmouseshape.vim', 'D')
   call RunVim([], [], "-g -S Xmouseshape.vim")
-  sleep 300m
-  call assert_equal(['beam', 'arrow'], readfile('Xmouseshapes'))
+  call WaitForAssert({-> assert_equal(['beam', 'arrow'], readfile('Xmouseshapes'))}, 300)
 
   call delete('Xmouseshapes')
 endfunc
diff --git a/src/version.c b/src/version.c
index 8c2533c..7985985 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    860,
+/**/
     859,
 /**/
     858,