SOURCE_FILE
  TYPE_ALIAS
    TYPE_KW "type"
    WHITESPACE " "
    NAME
      IDENT "Foo"
    WHITESPACE " "
    EQ "="
    WHITESPACE " "
    PATH_TYPE
      PATH
        PATH_SEGMENT
          NAME_REF
            IDENT "Bar"
    SEMICOLON ";"
  WHITESPACE "\n"
