Use zval_ptr_dtor_nogc() instead of zval_dtor() inplaces where circular-references are not possible

Author: dstogov

ext/curl/multi.c

@@ -510,7 +510,7 @@ static int _php_server_push_callback(CURL *parent_ch, CURL *easy, size_t num_hea
 
 	error = zend_call_function(&fci, &t->fci_cache);
 	zend_fcall_info_args_clear(&fci, 1);
-	zval_dtor(&headers);
+	zval_ptr_dtor_nogc(&headers);
 
 	if (error == FAILURE) {
 		php_error_docref(NULL, E_WARNING, "Cannot call the CURLMOPT_PUSHFUNCTION");

ext/interbase/ibase_query.c

@@ -1628,7 +1628,7 @@ static void _php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAMETERS, int fetch_type)
 					}
 					break;
 				_php_ibase_fetch_error:
-					zval_dtor(&result);
+					zval_ptr_dtor_nogc(&result);
 					RETURN_FALSE;
 			} /* switch */
 

ext/interbase/php_ibase_udf.c

@@ -298,7 +298,7 @@ static void call_php(char *name, PARAMDSC *r, int argc, PARAMDSC **argv)
 				case dtype_sql_date:
 				case dtype_sql_time:
 				case dtype_timestamp:
-					zval_dtor(&args[i]);
+					zval_ptr_dtor_nogc(&args[i]);
 			}
 		}
 

ext/mysqlnd/mysqlnd_result.c

@@ -1811,7 +1811,7 @@ MYSQLND_METHOD(mysqlnd_res, fetch_field_data)(MYSQLND_RES * result, unsigned int
 	*/
 	mysqlnd_fetch_into(result, MYSQLND_FETCH_NUM, &row, MYSQLND_MYSQL);
 	if (Z_TYPE(row) != IS_ARRAY) {
-		zval_dtor(&row);
+		zval_ptr_dtor_nogc(&row);
 		RETVAL_NULL();
 		DBG_VOID_RETURN;
 	}
@@ -1824,7 +1824,7 @@ MYSQLND_METHOD(mysqlnd_res, fetch_field_data)(MYSQLND_RES * result, unsigned int
 	entry = zend_hash_get_current_data(Z_ARRVAL(row));
 
 	ZVAL_COPY(return_value, entry);
-	zval_dtor(&row);
+	zval_ptr_dtor_nogc(&row);
 
 	DBG_VOID_RETURN;
 }