* python/py-auto-load.c (struct auto_load_pspace_info): New member
script_not_found_warning_printed.
(init_loaded_scripts_info): Renamed from create_loaded_scripts_hash,
all callers updated. Initialize script_not_found_warning_printed.
(get_auto_load_pspace_data_for_loading): New function.
(maybe_add_script): New function.
(source_section_scripts): Simplify. Only print one warning regardless
of the number of auto-load scripts not found.
(clear_section_scripts): Clear script_not_found_warning_printed.
(auto_load_objfile_script): Record script in hash table.
(count_matching_scripts): New function.
(maybe_print_script): Renamed from maybe_print_section_script, all
callers updated. Rewrite to use ui_out_*.
(info_auto_load_scripts): Renamed from
maintenance_print_section_scripts, all callers updated.
(gdbpy_initialize_auto_load): "maintenance print section-scripts"
renamed as "info auto-load-scripts".
doc/
* gdb.texinfo (Auto-loading): Document "info auto-load-scripts".
testsuite/
* gdb.python/py-objfile-script.exp: New file.
* gdb.python/py-objfile-script.c: New file.
* gdb.python/py-objfile-script-gdb.py: New file.
* testsuite/gdb.python/py-section-script.exp: Test
"info auto-load-scripts".
