error: Expected {, got --> $DIR/tests/test262-parser/fail/2d1410e37ecc3647.js:1:23 | 1 | function f(a, ...b = 0) | ^ error: A rest parameter cannot have an initializer --> $DIR/tests/test262-parser/fail/2d1410e37ecc3647.js:1:18 | 1 | function f(a, ...b = 0) | ^