SOURCE_FILE
  FN
    FN_KW "fn"
    WHITESPACE " "
    NAME
      IDENT "foo"
    PARAM_LIST
      L_PAREN "("
      R_PAREN ")"
    WHITESPACE " "
    BLOCK_EXPR
      STMT_LIST
        L_CURLY "{"
        WHITESPACE "\n    "
        LET_STMT
          LET_KW "let"
          WHITESPACE " "
          IDENT_PAT
            NAME
              IDENT "foo"
          WHITESPACE " "
          EQ "="
          WHITESPACE " "
          LITERAL
            INT_NUMBER "11"
        WHITESPACE "\n    "
        LET_STMT
          LET_KW "let"
          WHITESPACE " "
          IDENT_PAT
            NAME
              IDENT "bar"
          WHITESPACE " "
          EQ "="
          WHITESPACE " "
          LITERAL
            INT_NUMBER "1"
          SEMICOLON ";"
        WHITESPACE "\n    "
        LET_STMT
          LET_KW "let"
        WHITESPACE "\n    "
        LET_STMT
          LET_KW "let"
          WHITESPACE " "
          IDENT_PAT
            NAME
              IDENT "baz"
          WHITESPACE " "
          EQ "="
          WHITESPACE " "
          LITERAL
            INT_NUMBER "92"
          SEMICOLON ";"
        WHITESPACE "\n    "
        LET_STMT
          LET_KW "let"
        WHITESPACE "\n    "
        EXPR_STMT
          IF_EXPR
            IF_KW "if"
            WHITESPACE " "
            LITERAL
              TRUE_KW "true"
            WHITESPACE " "
            BLOCK_EXPR
              STMT_LIST
                L_CURLY "{"
                R_CURLY "}"
        WHITESPACE "\n    "
        LET_STMT
          LET_KW "let"
        WHITESPACE "\n    "
        EXPR_STMT
          WHILE_EXPR
            WHILE_KW "while"
            WHITESPACE " "
            LITERAL
              TRUE_KW "true"
            WHITESPACE " "
            BLOCK_EXPR
              STMT_LIST
                L_CURLY "{"
                R_CURLY "}"
        WHITESPACE "\n    "
        LET_STMT
          LET_KW "let"
        WHITESPACE "\n    "
        LOOP_EXPR
          LOOP_KW "loop"
          WHITESPACE " "
          BLOCK_EXPR
            STMT_LIST
              L_CURLY "{"
              R_CURLY "}"
        WHITESPACE "\n"
        R_CURLY "}"
  WHITESPACE "\n"
error 27: expected SEMICOLON
error 52: expected pattern
error 52: expected SEMICOLON
error 78: expected pattern
error 78: expected SEMICOLON
error 101: expected pattern
error 101: expected SEMICOLON
error 127: expected pattern
error 127: expected SEMICOLON