Create 'main' test directory and move 't' and 'r' there

mysql-test/main/view_debug.test

@@ -0,0 +1,36 @@
+
+--source include/have_debug.inc
+
+--echo #
+--echo #MDEV-8087:Server crashed in Time_and_counter_tracker::incr_loops
+--echo #
+
+CREATE PROCEDURE proc() SELECT * FROM v2; 
+
+CREATE ALGORITHM = UNDEFINED VIEW v1 AS SELECT 1;
+CREATE ALGORITHM = TEMPTABLE VIEW v2 AS SELECT 3 FROM v1;
+DROP VIEW v1;
+
+--connect (con1,localhost,root,,test)
+
+--connect (con2,localhost,root,,test)
+
+--connection con1
+--error ER_VIEW_INVALID
+CALL proc();
+SET DEBUG_SYNC= 'after_cached_view_opened SIGNAL oppp WAIT_FOR created';
+send CALL proc(); 
+
+--connection con2
+SET DEBUG_SYNC= 'now WAIT_FOR oppp';
+SET DEBUG_SYNC= 'RESET';
+CREATE ALGORITHM = TEMPTABLE VIEW v1 AS SELECT 2;
+SET DEBUG_SYNC= 'now SIGNAL created';
+
+--connection con1
+--reap
+SET DEBUG_SYNC= 'RESET';
+
+
+drop procedure proc;
+drop view v1,v2;