Possible missing braces compiler warning fix for PDO

Author: Girgias

Zend/zend_types.h

@@ -302,6 +302,7 @@ typedef union _zend_value {
 struct _zval_struct {
 	zend_value        value;			/* value */
 	union {
+		uint32_t type_info;
 		struct {
 			ZEND_ENDIAN_LOHI_3(
 				zend_uchar    type,			/* active type */
@@ -310,7 +311,6 @@ struct _zval_struct {
 					uint16_t  extra;        /* not further specified */
 				} u)
 		} v;
-		uint32_t type_info;
 	} u1;
 	union {
 		uint32_t     next;                 /* hash collision chain */

ext/pdo/pdo_stmt.c

@@ -750,7 +750,7 @@ static int do_fetch(pdo_stmt_t *stmt, int do_bind, zval *return_value, enum pdo_
 {
 	int flags, idx, old_arg_count = 0;
 	zend_class_entry *ce = NULL, *old_ce = NULL;
-	zval grp_val, *pgrp, retval, old_ctor_args = {0};
+	zval grp_val, *pgrp, retval, old_ctor_args = {{0}, {0}, {0}};
 	int colno;
 
 	if (how == PDO_FETCH_USE_DEFAULT) {