Function tryAddPropertyAssignment

test/fixtures/snapshot/typescript.js:26724–26730

(properties, propertyName, expression)

            return createGlobalMethodCall("Reflect", "set", receiver ? [target, propertyKey, value, receiver] : [target, propertyKey, value]);
        }
        function tryAddPropertyAssignment(properties, propertyName, expression) {
            if (expression) {
                properties.push(createPropertyAssignment(propertyName, expression));
                return true;
            }
            return false;
        }
        function createPropertyDescriptor(attributes, singleLine) {
            var properties = [];
            tryAddPropertyAssignment(properties, "enumerable", asExpression(attributes.enumerable));