Merge zend_class_entry.create_object and zend_class_entry.interface_gets_implemented into the same memory lacation. The first used only by classes, the second only by magic interfaces.

Author: dstogov

Zend/zend.h

@@ -143,9 +143,11 @@ struct _zend_class_entry {
 	zend_class_iterator_funcs *iterator_funcs_ptr;
 
 	/* handlers */
-	zend_object* (*create_object)(zend_class_entry *class_type);
+	union {
+		zend_object* (*create_object)(zend_class_entry *class_type);
+		int (*interface_gets_implemented)(zend_class_entry *iface, zend_class_entry *class_type); /* a class implements this interface */
+	};
 	zend_object_iterator *(*get_iterator)(zend_class_entry *ce, zval *object, int by_ref);
-	int (*interface_gets_implemented)(zend_class_entry *iface, zend_class_entry *class_type); /* a class implements this interface */
 	union _zend_function *(*get_static_method)(zend_class_entry *ce, zend_string* method);
 
 	/* serializer callbacks */

Zend/zend_API.h

@@ -202,7 +202,6 @@ typedef struct _zend_fcall_info_cache {
 		class_container.serialize = NULL;						\
 		class_container.unserialize = NULL;						\
 		class_container.create_object = NULL;					\
-		class_container.interface_gets_implemented = NULL;		\
 		class_container.get_static_method = NULL;				\
 		class_container.__call = NULL;							\
 		class_container.__callstatic = NULL;					\

Zend/zend_compile.c

@@ -1751,7 +1751,6 @@ ZEND_API void zend_initialize_class_data(zend_class_entry *ce, zend_bool nullify
 		ce->create_object = NULL;
 		ce->get_iterator = NULL;
 		ce->iterator_funcs_ptr = NULL;
-		ce->interface_gets_implemented = NULL;
 		ce->get_static_method = NULL;
 		ce->parent = NULL;
 		ce->num_interfaces = 0;