dis.hasjrel and other opcode collections missing

[lgray]

>>> dis.hasjrel
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'dis' has no attribute 'hasjrel'

In particular this causes problems with using llvmlite/numba in conjunction with this python fork.
These are part of the nominal python distribution but it looks like this part of the code had to be significantly altered for the nogil changes.
https://docs.python.org/3.9/library/dis.html#opcode-collections
If it's not too hard to add these collections back in I may send a pull request, but if it's deeper than that I'd like to hear your thoughts on this!