Fixes for CREATE_OR_REPLACE

- MDEV-5587 Server crashes in Locked_tables_list::restore_lock on CREATE OR REPLACE .. SELECT under LOCK
- MDEV-5586 Assertion `share->tdc.all_tables.is_empty() || remove_type != TDC_RT_REMOVE_ALL' fails in tdc_remove_table
- MDEV-5588 Strange error on CREATE OR REPLACE table over an existing view

mysql-test/r/create_or_replace.result:
  Added test cases
mysql-test/r/lowercase_view.result:
  New error message
mysql-test/r/merge.result:
  New error message
mysql-test/r/multi_update.result:
  New error message
mysql-test/r/subselect.result:
  New error message
mysql-test/r/subselect_exists_to_in.result:
  New error message
mysql-test/r/subselect_no_mat.result:
  New error message
mysql-test/r/subselect_no_opts.result:
  New error message
mysql-test/r/subselect_no_scache.result:
  New error message
mysql-test/r/subselect_no_semijoin.result:
  New error message
mysql-test/r/view.result:
  New error message
mysql-test/suite/funcs_1/r/myisam_views-big.result:
  New error message
mysql-test/t/create_or_replace.test:
  New tests
mysql-test/t/view.test:
  New error message
sql/share/errmsg-utf8.txt:
  Added new error message
sql/sql_base.cc:
  Updated error message
  Do an automatic UNLOCK TABLES if we don't have any locked tables (safety fix)
sql/sql_db.cc:
  Updated arguments
sql/sql_load.cc:
  New error message
sql/sql_parse.cc:
  Check that we are not using a table we are dropping and re-creating
sql/sql_table.cc:
  Added parameter to mysql_rm_table_no_locks() to not automaticly do UNLOCK TABLES
  Added better error message if trying to drop a view with DROP TABLE
  Don't try to create something we select from
sql/sql_table.h:
  Updated prototypes

1 files changed, 3 insertions, 3 deletions

diff --git a/mysql-test/r/multi_update.result b/mysql-test/r/multi_update.result
index f49998da5f4..ff0aa828636 100644
--- a/mysql-test/r/multi_update.result
+++ b/mysql-test/r/multi_update.result
@@ -439,9 +439,9 @@ drop table t1, t2, t3;
 create table t1 (col1 int);
 create table t2 (col1 int);
 update t1,t2 set t1.col1 = (select max(col1) from t1) where t1.col1 = t2.col1;
-ERROR HY000: You can't specify target table 't1' for update in FROM clause
+ERROR HY000: Table 't1' is specified twice, both as a target for 'UPDATE' and as a separate source for data
 delete t1 from t1,t2 where t1.col1 < (select max(col1) from t1) and t1.col1 = t2.col1;
-ERROR HY000: You can't specify target table 't1' for update in FROM clause
+ERROR HY000: Table 't1' is specified twice, both as a target for 'DELETE' and as a separate source for data
 drop table t1,t2;
 create table t1 (
 aclid bigint not null primary key,
@@ -457,7 +457,7 @@ drop table t1, t2;
 create table t1(a int);
 create table t2(a int);
 delete from t1,t2 using t1,t2 where t1.a=(select a from t1);
-ERROR HY000: You can't specify target table 't1' for update in FROM clause
+ERROR HY000: Table 't1' is specified twice, both as a target for 'DELETE' and as a separate source for data
 drop table t1, t2;
 create table t1 ( c char(8) not null ) engine=innodb;
 insert into t1 values ('0'),('1'),('2'),('3'),('4'),('5'),('6'),('7'),('8'),('9');