x Expected '{', got '' ,-[$DIR/tests/test262-parser/fail/f0ff9ff5dab859aa.js:1:1] 1 | function f(a, ...b, c) : ^ `---- x A rest parameter must be last in a parameter list ,-[$DIR/tests/test262-parser/fail/f0ff9ff5dab859aa.js:1:1] 1 | function f(a, ...b, c) : ^^^ `----