Changes for version 0.50
- Moved to beta-level along with rest of compiler
- Increased version number to 0.50 for beta
- Cleanups motivated by -w
- Fixed dual string/numeric value SVs
- Made all SV field labels all-caps
- Added edge classes for VCG
- Removed PMOP fields gone in recent development versions
- Made op_seq and op_type optional
- Made run-order actually walk in run-order
- Distinguished between op_nexts and other runtime pointers
- Removed `op_' prefix on OP fields
- Removed bogus `CVOP' class
Modules
Perl compiler backend to produce graphs of OP trees