patch 8.0.1341: 'imactivatefunc' test fails on MS-Windows

Problem:    'imactivatefunc' test fails on MS-Windows.
Solution:   Skip the text.

runtime/doc/options.txt

@@ -4259,6 +4259,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 			{only available when compiled with |+mbyte|}
 	This option specifies a function that will be called to
 	activate/inactivate Input Method.
+	Does not work in the MS-Windows GUI version.
 
 	Example: >
 		function ImActivateFunc(active)
@@ -4374,6 +4375,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 			{only available when compiled with |+mbyte|}
 	This option specifies a function that is called to obtain the status
 	of Input Method.  It must return a positive number when IME is active.
+	Does not work in the MS-Windows GUI version.
 
 	Example: >
 		function ImStatusFunc()

src/testdir/test_iminsert.vim

@@ -17,6 +17,9 @@ func IM_statusfunc()
 endfunc
 
 func Test_iminsert2()
+  if has('gui_win32')
+    return
+  endif
   set imactivatefunc=IM_activatefunc
   set imstatusfunc=IM_statusfunc
   set iminsert=2

src/version.c

@@ -771,6 +771,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1341,
 /**/
     1340,
 /**/