Fixed issue with copy/paste of NEXTSTATE without children;
Fixed issue with syntax check of STATE and NEXTSTATE
Fix type analysis for bitwise expressions with reference element types.
Merge remote-tracking branch 'upstream/master'
Fix type analysis for not expressions with reference element types.
Added Ada code generation for not expressions with SeqOf operands
flake8 fixes
Merge branch 'master' of https://github.com/dbrabera/opengeode