patch 8.1.0313: information about a swap file is unavailable

Problem:    Information about a swap file is unavailable.
Solution:   Add swapinfo(). (Enzo Ferber)
diff --git a/src/proto/memline.pro b/src/proto/memline.pro
index 727b24c..d18ede3 100644
--- a/src/proto/memline.pro
+++ b/src/proto/memline.pro
@@ -11,6 +11,8 @@
 void ml_timestamp(buf_T *buf);
 void ml_recover(void);
 int recover_names(char_u *fname, int list, int nr, char_u **fname_out);
+char_u *make_percent_swname(char_u *dir, char_u *name);
+void get_b0_dict(char_u *fname, dict_T *d);
 void ml_sync_all(int check_file, int check_char);
 void ml_preserve(buf_T *buf, int message);
 char_u *ml_get(linenr_T lnum);
@@ -34,5 +36,4 @@
 void ml_decrypt_data(memfile_T *mfp, char_u *data, off_T offset, unsigned size);
 long ml_find_line_or_offset(buf_T *buf, linenr_T lnum, long *offp);
 void goto_byte(long cnt);
-char_u *make_percent_swname (char_u *dir, char_u *name);
 /* vim: set ft=c : */