(Fmake_directory_internal, Fread_file_name): Remove unused vars.
(Ffile_selinux_context, Fset_file_selinux_context): Fix pointer
signedness issues.
+ (Fset_file_times, Finsert_file_contents, auto_save_error):
+ Rename locals to avoid shadowing.
* minibuf.c (choose_minibuf_frame_1): Now static.
(Ftry_completion, Fall_completions): Rename or remove locals