MDEV-33386 Wrong error message on `GRANT .. ON PACKAGE no_such_package ..`

When displaying the ER_SP_DOES_NOT_EXIST error, use
Sp_handler::type_lex_cstring() to the the underlying
object type:
- PROCEDURE
- FUNCTION
- PACKAGE
- PACKAGE BODY
instead of hard-coded "FUNCTION or PROCEDURE".

mysql-test/main/grant.result

@@ -2662,9 +2662,9 @@ create database mysqltest_db1;
 create user mysqltest_u1;
 # Both GRANT statements below should fail with the same error.
 grant execute on function mysqltest_db1.f1 to mysqltest_u1;
-ERROR 42000: FUNCTION or PROCEDURE f1 does not exist
+ERROR 42000: FUNCTION f1 does not exist
 grant execute on procedure mysqltest_db1.p1 to mysqltest_u1;
-ERROR 42000: FUNCTION or PROCEDURE p1 does not exist
+ERROR 42000: PROCEDURE p1 does not exist
 # Let us show that GRANT behaviour for routines is consistent
 # with GRANT behaviour for tables. Attempt to grant privilege
 # on non-existent table also results in an error.

mysql-test/main/sp-package-security.result

+#
+# Start of 11.4 tests
+#
 CREATE DATABASE db1;
 CREATE USER u1@localhost IDENTIFIED BY '';
 GRANT SELECT ON db1.* TO u1@localhost;
@@ -307,3 +310,13 @@ SESSION_USER()	CURRENT_USER()	msg
 root@localhost	root@localhost	p1.p1
 DROP PACKAGE p1;
 DROP USER xxx@localhost;
+#
+# MDEV-33386 Wrong error message on `GRANT .. ON PACKAGE no_such_package ..`
+#
+GRANT EXECUTE ON PACKAGE no_such_package TO PUBLIC;
+ERROR 42000: PACKAGE no_such_package does not exist
+GRANT EXECUTE ON PACKAGE BODY no_such_package TO PUBLIC;
+ERROR 42000: PACKAGE BODY no_such_package does not exist
+#
+# End of 11.4 tests
+#

mysql-test/main/sp-package-security.test

 --source include/not_embedded.inc
 --source include/default_charset.inc
 
+--echo #
+--echo # Start of 11.4 tests
+--echo #
+
 CREATE DATABASE db1;
 CREATE USER u1@localhost IDENTIFIED BY '';
 GRANT SELECT ON db1.* TO u1@localhost;
@@ -320,3 +324,17 @@ DELIMITER ;$$
 CALL p1.p1;
 DROP PACKAGE p1;
 DROP USER xxx@localhost;
+
+
+--echo #
+--echo # MDEV-33386 Wrong error message on `GRANT .. ON PACKAGE no_such_package ..`
+--echo #
+
+--error ER_SP_DOES_NOT_EXIST
+GRANT EXECUTE ON PACKAGE no_such_package TO PUBLIC;
+--error ER_SP_DOES_NOT_EXIST
+GRANT EXECUTE ON PACKAGE BODY no_such_package TO PUBLIC;
+
+--echo #
+--echo # End of 11.4 tests
+--echo #

sql/sp.cc

@@ -2291,7 +2291,7 @@ Sp_handler::sp_exist_routines(THD *thd, TABLE_LIST *routines) const
     thd->get_stmt_da()->clear_warning_info(thd->query_id);
     if (! sp_object_found)
     {
-      my_error(ER_SP_DOES_NOT_EXIST, MYF(0), "FUNCTION or PROCEDURE",
+      my_error(ER_SP_DOES_NOT_EXIST, MYF(0), type_lex_cstring().str,
                routine->table_name.str);
       DBUG_RETURN(TRUE);
     }