SOURCE_FILE
  ERROR
    R_CURLY "}"
  WHITESPACE "\n\n"
  STRUCT
    STRUCT_KW "struct"
    WHITESPACE " "
    NAME
      IDENT "S"
    SEMICOLON ";"
  WHITESPACE "\n\n"
  ERROR
    R_CURLY "}"
  WHITESPACE "\n\n"
  FN
    FN_KW "fn"
    WHITESPACE " "
    NAME
      IDENT "foo"
    PARAM_LIST
      L_PAREN "("
      R_PAREN ")"
    BLOCK_EXPR
      STMT_LIST
        L_CURLY "{"
        R_CURLY "}"
  WHITESPACE "\n\n"
  ERROR
    R_CURLY "}"
  WHITESPACE "\n"
error 0: unmatched `}`
error 14: unmatched `}`
error 29: unmatched `}`