error: Expected ';', '}' or <eof>
 --> $DIR/tests/test262-parser/fail/c5f9c5bfdf66ef66.js:1:3
  |
1 | a if;
  |   ^^
  |
note: This is the expression part of an expression statement
 --> $DIR/tests/test262-parser/fail/c5f9c5bfdf66ef66.js:1:1
  |
1 | a if;
  | ^