error: Expected 4 hex characters
 --> $DIR/tests/test262-parser/fail/575367951ac8635d.js:1:3
  |
1 | ('\u')
  |   ^^

error: Unterminated string constant
 --> $DIR/tests/test262-parser/fail/575367951ac8635d.js:1:5
  |
1 | ('\u')
  |     ^^