patch 8.1.1927: code for dealing with script files is spread out

Problem:    Code for dealing with script files is spread out.
Solution:   Move the code to scriptfile.c. (Yegappan Lakshmanan, closes #4861)
diff --git a/src/proto/scriptfile.pro b/src/proto/scriptfile.pro
new file mode 100644
index 0000000..98f8210
--- /dev/null
+++ b/src/proto/scriptfile.pro
@@ -0,0 +1,30 @@
+/* scriptfile.c */
+void ex_runtime(exarg_T *eap);
+int do_in_path(char_u *path, char_u *name, int flags, void (*callback)(char_u *fname, void *ck), void *cookie);
+int do_in_runtimepath(char_u *name, int flags, void (*callback)(char_u *fname, void *ck), void *cookie);
+int source_runtime(char_u *name, int flags);
+int source_in_path(char_u *path, char_u *name, int flags);
+void add_pack_start_dirs(void);
+void load_start_packages(void);
+void ex_packloadall(exarg_T *eap);
+void ex_packadd(exarg_T *eap);
+int ExpandRTDir(char_u *pat, int flags, int *num_file, char_u ***file, char *dirnames[]);
+int ExpandPackAddDir(char_u *pat, int *num_file, char_u ***file);
+void ex_source(exarg_T *eap);
+void ex_options(exarg_T *eap);
+linenr_T *source_breakpoint(void *cookie);
+int *source_dbg_tick(void *cookie);
+int source_level(void *cookie);
+int do_source(char_u *fname, int check_other, int is_vimrc);
+void ex_scriptnames(exarg_T *eap);
+void scriptnames_slash_adjust(void);
+char_u *get_scriptname(scid_T id);
+void free_scriptnames(void);
+linenr_T get_sourced_lnum(char_u *(*fgetline)(int, void *, int, int), void *cookie);
+char_u *getsourceline(int c, void *cookie, int indent, int do_concat);
+void ex_scriptencoding(exarg_T *eap);
+void ex_scriptversion(exarg_T *eap);
+void ex_finish(exarg_T *eap);
+void do_finish(exarg_T *eap, int reanimate);
+int source_finished(char_u *(*fgetline)(int, void *, int, int), void *cookie);
+/* vim: set ft=c : */