error: Expected unicode escape
 --> $DIR/tests/test262-parser/fail/033c083bb1f44642.js:1:7
  |
1 | \uD800\x62
  |       ^

error: Invalid character in identifier
 --> $DIR/tests/test262-parser/fail/033c083bb1f44642.js:1:1
  |
1 | \uD800\x62
  | ^^^^^^