Reimplement bytecode validation
Fix comment fail
Merge branch 'master' into validation
Minor improvements
Validate jumplists and prepare callsites
Validate number of positional arguments
Merge branch 'master' into validation
declaration before code
Update ops
Improve validator error messages
Validate argument types
Remove TODO and debug code
Provide static versions of default REPR sub-vtables
Add missing const to MVM_string_ascii_decode*()
Hack-in char* REPR names

There appear to be no new failures in selftest
some name renaming
make HashAttrStore this_repr static
make some reprs this_repr static
make some reprs this_repr static
make some reprs this_repr static