patch 8.2.4650: "import autoload" only works with using 'runtimepath'
Problem: "import autoload" only works with using 'runtimepath'.
Solution: Also support a relative and absolute file name.
diff --git a/src/proto/userfunc.pro b/src/proto/userfunc.pro
index ad57855..91d5711 100644
--- a/src/proto/userfunc.pro
+++ b/src/proto/userfunc.pro
@@ -8,6 +8,7 @@
void emsg_funcname(char *ermsg, char_u *name);
int get_func_tv(char_u *name, int len, typval_T *rettv, char_u **arg, evalarg_T *evalarg, funcexe_T *funcexe);
char_u *fname_trans_sid(char_u *name, char_u *fname_buf, char_u **tofree, int *error);
+void func_name_with_sid(char_u *name, int sid, char_u *buffer);
ufunc_T *find_func_even_dead(char_u *name, int flags);
ufunc_T *find_func(char_u *name, int is_global);
int func_is_global(ufunc_T *ufunc);