parentheses in default

- Adding SHOW CREATE TABLE into all DEFAULT tests,
  to cover need_parentheses_in_default() for all items
- Fixing a few items not to print parentheses in DEFAULT:
  spatial function-alike predicates, IS_IPV4 and IS_IPV6 functions,
  COLUMN_CHECK() and COLUMN_EXISTS().

Author: Alexander Barkov

mysql-test/r/ctype_like_range.result

@@ -3309,6 +3309,13 @@ a VARCHAR(10),
 mn VARCHAR(10) DEFAULT LIKE_RANGE_MIN(a,10),
 mx VARCHAR(10) DEFAULT LIKE_RANGE_MAX(a,10)
 );
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` varchar(10) DEFAULT NULL,
+  `mn` varchar(10) DEFAULT LIKE_RANGE_MIN(a,10),
+  `mx` varchar(10) DEFAULT LIKE_RANGE_MAX(a,10)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
 INSERT INTO t1 (a) VALUES ('a'),('a_'),('a%');
 SELECT a, HEX(mn), HEX(mx) FROM t1;
 a	HEX(mn)	HEX(mx)