Don't mark individual types as part of an intersection

Author: Girgias

Zend/zend_compile.c

@@ -6324,9 +6324,6 @@ static zend_type zend_compile_typename(
 			}
 			zend_string_release_ex(standard_type_str, false);
 
-			/* Inform that the type is part of an intersection type */
-			ZEND_TYPE_FULL_MASK(single_type) |= _ZEND_TYPE_INTERSECTION_BIT;
-
 			if (!ZEND_TYPE_IS_COMPLEX(type)) {
 				/* The first class type can be stored directly as the type ptr payload. */
 				ZEND_TYPE_SET_PTR(type, ZEND_TYPE_NAME(single_type));
@@ -6360,7 +6357,7 @@ static zend_type zend_compile_typename(
 			memcpy(list, type_list, ZEND_TYPE_LIST_SIZE(type_list->num_types));
 			ZEND_TYPE_SET_LIST(type, list);
 			ZEND_TYPE_FULL_MASK(type) |= _ZEND_TYPE_ARENA_BIT;
-			/* Inform that the type list contains an intersection type */
+			/* Inform that the type list is an intersection type */
 			ZEND_TYPE_FULL_MASK(type) |= _ZEND_TYPE_INTERSECTION_BIT;
 		}