ER_NO_SUCH_TABLE_IN_ENGINE or "File not found" upon concurrent DDL with CREATE OR REPLACE

# Optional, only for trying with --default-storage-engine=InnoDB

--source include/have_innodb.inc

--connect (con1,localhost,root,,test)

CREATE TABLE t1 (a INT);

CREATE TRIGGER tr BEFORE DELETE ON t1 FOR EACH ROW BEGIN END;

CREATE TABLE t2 (b INT);

--send

  CREATE OR REPLACE TABLE t1 (c INT);

--connection default

CREATE OR REPLACE TABLE t2 (d INT);

DROP TRIGGER IF EXISTS tr;

# Cleanup

--connection con1

--reap

DROP TABLE IF EXISTS t1, t2;

--disconnect con1

query 'DROP TRIGGER IF EXISTS tr' failed: ER_NO_SUCH_TABLE_IN_ENGINE (1932): Table 'test.#sql-backup-7eacb-5-t1' doesn't exist in engine

query 'DROP TRIGGER IF EXISTS tr' failed: ER_FILE_NOT_FOUND (1017): Can't find file: './test/#sql-backup-7eb27-82-t1.MYI' (errno: 2 "No such file or directory")