support unary boolean context operator, and q{} string literal
simplified test case
remove trailing zeros in sexp generation
more literals
hyphen is allowed in variable name
unary upto operators.
$*OUT, $*ERR, 1..*
scalar deref
better hash parsing
passed over 100 roast test cases!
`@*INC.push: '/etc'` style method invocation was supported.
Support trailing comma in funcall
supported meta methods!