MODULE@0..12
  CLASS_DECL@0..10
    CLASS_KW@0..5 "class"
    WHITESPACE@5..6 " "
    NAME@6..7
      IDENT@6..7 "S"
    CLASS_BODY@7..10
      L_CURLY@7..8 "{"
      ERROR@8..9
        L_CURLY@8..9 "{"
      R_CURLY@9..10 "}"
  ERROR@10..11
    R_CURLY@10..11 "}"
  WHITESPACE@11..12 "\n"
--
error[SyntaxError]: Expected an identifier or keyword
  ┌─ block_stmt_in_class.js:1:9
  │
1 │ class S{{}}
  │         ^ Expected an identifier or keyword here

--
error[SyntaxError]: expected `;`, a property, or a method for a class body, but found none
  ┌─ block_stmt_in_class.js:1:9
  │
1 │ class S{{}}
  │         ^

--
error[SyntaxError]: Expected a statement or declaration, but found none
  ┌─ block_stmt_in_class.js:1:11
  │
1 │ class S{{}}
  │           ^ Expected a statement or declaration here

--
class S{{}}