patch 9.1.0495: Matched text isn't highlighted in cmdline pum

Problem:  Matched text isn't highlighted in cmdline pum.
Solution: Use cmdline completion pattern in cmdline mode.
          (zeertzjq)

closes: #15029

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/proto/cmdexpand.pro b/src/proto/cmdexpand.pro
index 100c23d..dfa6d1b 100644
--- a/src/proto/cmdexpand.pro
+++ b/src/proto/cmdexpand.pro
@@ -6,6 +6,8 @@
 void cmdline_pum_remove(void);
 void cmdline_pum_cleanup(cmdline_info_T *cclp);
 int cmdline_compl_startcol(void);
+char_u *cmdline_compl_pattern(void);
+int cmdline_compl_is_fuzzy(void);
 char_u *ExpandOne(expand_T *xp, char_u *str, char_u *orig, int options, int mode);
 void ExpandInit(expand_T *xp);
 void ExpandCleanup(expand_T *xp);