error: Expected 4 hex characters
 --> $DIR/tests/test262-parser/fail/c3afed3cb0fb92ab.js:1:7
  |
1 | \uD800\u
  |       ^^

error: Invalid character in identifier
 --> $DIR/tests/test262-parser/fail/c3afed3cb0fb92ab.js:1:1
  |
1 | \uD800\u
  | ^^^^^^