GitLab

(Fverify_visited_file_modtime):
Pass buffer itself to handler, if have handler.
(Fwrite_region): GCPRO around Fexpand_file_name, Ffie_name_directory.
(Fread_file_name_internal): GCPRO around file name manip.
(Ffile_writable_p, Ffile_readable_p): Use abspath, not filename,
(Ffile_executable_p, Ffile_exists_p): to run the handler.
(Fset_file_modes, Ffile_directory_p, Ffile_modes): Likewise.
(Ffile_newer_than_file_p): GCPRO around expand_and_dir_to_file.

[VMS] (Ffile_version_limit): New function.

Check for clobberage of ptr, when marking a vector.

if comment-end is 2 chars, assume it does end a comment.
Otherwise, scan back to previous comment-end to see if there's
a comment starter between.  Also record whether the string quotes
between the start and the end are paired and uniform.
If so, skip to comment starter.  If not, scan from start of
defun to find comment starter if any.
(find_defun_start): New function.