After merge fixes

Added more DBUG statements
Ensure that we are comparing end space with BINARY strings
Use 'any_db' instead of '' to mean any database. (For HANDLER command)
Only strip ' ' when comparing CHAR, not other space-like characters (like \t)

mysql-test/r/range.result

@@ -302,6 +302,7 @@ WHERE
 a	b
 15	1
 47	1
+DROP TABLE t1;
 create  table t1 (id int(10) primary key);
 insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9);
 select id from t1 where id in (2,5,9) ;