Check that CheckRegularTransaction rejects coinbases and vice-versa
Summary: This is somewhat of a hole in the test plan.
Test Plan:
make check
Remove the coinbase check from CheckRegularTransaction and make sure that everything fails.
Reviewers: #bitcoin_abc, jasonbcox
Reviewed By: #bitcoin_abc, jasonbcox
Subscribers: teamcity
Differential Revision: https://reviews.bitcoinabc.org/D1867