lvalue functions
regression/sanity tests for suidperl
Full 64 bit support (i.e. "long long")
+ Generalise Errno way of extracting cpp symbols and use that in Errno and Fcntl (ExtUtils::CppSymbol?)
Possible pragmas
debugger
Vague possibilities
ref function in list context
- data prettyprint function? (or is it, as I suspect, a lib routine?)
make tr/// return histogram in list context?
Loop control on do{} et al
Explicit switch statements