correct not_null_tables() for XOR and AND

correct top_level_item for XOR

mysql-test/r/join_outer.result

@@ -857,4 +857,10 @@ a	b	a	b
 1	1	1	2
 2	1	2	2
 3	1	NULL	NULL
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE not(0+(t1.a=30 and t2.b=1));
+a	b	a	b
+1	1	1	2
+2	1	2	2
+3	1	NULL	NULL
+4	2	NULL	NULL
 DROP TABLE t1,t2;

mysql-test/t/join_outer.test

@@ -610,6 +610,7 @@ SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a;
 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE t1.b=1;
 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a
   WHERE t1.b=1 XOR (NOT ISNULL(t2.a) AND t2.b=1);
+SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE not(0+(t1.a=30 and t2.b=1));
 
 DROP TABLE t1,t2;
 

sql/item_cmpfunc.h

@@ -966,6 +966,8 @@ public:
   enum Functype functype() const { return COND_AND_FUNC; }
   longlong val_int();
   const char *func_name() const { return "and"; }
+  table_map not_null_tables() const
+  { return abort_on_null ? not_null_tables_cache: and_tables_cache; }
   Item* copy_andor_structure(THD *thd)
   {
     Item_cond_and *item;
@@ -1013,7 +1015,7 @@ public:
   enum Type type() const { return FUNC_ITEM; }
   longlong val_int();
   const char *func_name() const { return "xor"; }
-  table_map not_null_tables() const { return and_tables_cache; }
+  void top_level_item() {}
 };