vim-patch:8.1.0495: :filter only supports some commands

Problem:    :filter only supports some commands.
Solution:   Add :filter support for more commands. (Marcin Szamotulski,
            closes vim/vim#2856)
f86db78fed

src/nvim/mark.c

@@ -786,8 +786,11 @@ void ex_jumps(exarg_T *eap)
   for (i = 0; i < curwin->w_jumplistlen && !got_int; ++i) {
     if (curwin->w_jumplist[i].fmark.mark.lnum != 0) {
       name = fm_getname(&curwin->w_jumplist[i].fmark, 16);
-      if (name == NULL)             /* file name not available */
+
+      // apply :filter /pat/ or file name not available
+      if (name == NULL || message_filtered(name)) {
         continue;
+      }
 
       msg_putchar('\n');
       if (got_int) {