Add some function to __all__ to run tests

This change is result from the supporting __all__ in modules

Lib/_codecs.py

@@ -46,7 +46,7 @@ __all__ = ['register', 'lookup', 'lookup_error', 'register_error', 'encode', 'de
            'latin_1_encode', 'mbcs_decode', 'readbuffer_encode', 'escape_encode',
            'utf_8_decode', 'raw_unicode_escape_decode', 'utf_7_decode',
            'unicode_escape_encode', 'latin_1_decode', 'utf_16_decode',
-           'unicode_escape_decode', 'ascii_decode', 'charmap_encode',
+           'unicode_escape_decode', 'ascii_decode', 'charmap_encode', 'charmap_build',
            'unicode_internal_encode', 'unicode_internal_decode', 'utf_16_ex_decode',
            'escape_decode', 'charmap_decode', 'utf_7_encode', 'mbcs_encode',
            'ascii_encode', 'utf_16_encode', 'raw_unicode_escape_encode', 'utf_8_encode',

Lib/asyncio/tasks.py

@@ -4,6 +4,7 @@ __all__ = ['Task', 'create_task',
            'FIRST_COMPLETED', 'FIRST_EXCEPTION', 'ALL_COMPLETED',
            'wait', 'wait_for', 'as_completed', 'sleep', 'async',
            'gather', 'shield', 'ensure_future', 'run_coroutine_threadsafe',
+           'all_tasks'
            ]
 
 import concurrent.futures