Skipped error returning for GRANT/SET PASSWORD

CREATE USER foo@localhost;

GRANT FILE ON *.* TO foo@localhost IDENTIFIED VIA not_installed_plugin;

# Cleanup

DROP USER foo@localhost;

mysqld: /data/src/10.4/sql/protocol.cc:588: void Protocol::end_statement(): Assertion `0' failed.

190106 15:48:06 [ERROR] mysqld got signal 6 ;

#7  0x00007f74c9ce7ee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6

#8  0x0000555cbf44a39e in Protocol::end_statement (this=0x7f74a80010c0) at /data/src/10.4/sql/protocol.cc:588

#9  0x0000555cbf55b05d in dispatch_command (command=COM_QUERY, thd=0x7f74a8000b00, packet=0x7f74a800b421 "GRANT FILE ON *.* TO foo@localhost IDENTIFIED VIA not_installed_plugin", packet_length=70, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:2410

#10 0x0000555cbf557e92 in do_command (thd=0x7f74a8000b00) at /data/src/10.4/sql/sql_parse.cc:1396

#11 0x0000555cbf6c40ba in do_handle_one_connection (connect=0x555cc30ff6b0) at /data/src/10.4/sql/sql_connect.cc:1402

#12 0x0000555cbf6c3e3e in handle_one_connection (arg=0x555cc30ff6b0) at /data/src/10.4/sql/sql_connect.cc:1308

#13 0x0000555cbfb83164 in pfs_spawn_thread (arg=0x555cc3043970) at /data/src/10.4/storage/perfschema/pfs.cc:1862

#14 0x00007f74cb7a3494 in start_thread (arg=0x7f74c467b700) at pthread_create.c:333

#15 0x00007f74c9da493f in clone () from /lib/x86_64-linux-gnu/libc.so.6