virtual a {
option aaa # bbb
aa cc;
param { # comment 1
a b;
c d;
x y z; # comment 2
}
param e f g h; # comment 3
param e f g hlskdjflskdfjsd #comment 4
flksdjf sldkfjsldkfjsdlf
"lsdkfjsldkfjlsdkjflskdjflsdkjfl" "lkjsdlfjsdlfkjsdlfj";