patch 8.2.2358: wrong #ifdef for use_xterm_like_mouse()

Problem:    Wrong #ifdef for use_xterm_like_mouse().
Solution:   Use FEAT_MOUSE_XTERM.

Author: brammool

src/term.c

@@ -2053,20 +2053,20 @@ set_termname(char_u *term)
     set_mouse_termcode(KS_MOUSE, (char_u *)"\233M");
 #endif
 
-#if (defined(UNIX) || defined(VMS))
+#ifdef FEAT_MOUSE_XTERM
     // focus reporting is supported by xterm compatible terminals and tmux.
     if (use_xterm_like_mouse(term))
     {
 	char_u name[3];
-	name[0] = (int)KS_EXTRA;
-	name[2] = NUL;
 
 	// handle focus in event
-	name[1] = (int)KE_FOCUSGAINED;
+	name[0] = KS_EXTRA;
+	name[1] = KE_FOCUSGAINED;
+	name[2] = NUL;
 	add_termcode(name, (char_u *)"\033[I", FALSE);
 
 	// handle focus out event
-	name[1] = (int)KE_FOCUSLOST;
+	name[1] = KE_FOCUSLOST;
 	add_termcode(name, (char_u *)"\033[O", FALSE);
 
 	focus_mode = TRUE;

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2358,
 /**/
     2357,
 /**/