Observed on some test files in Nuitka/Nuitka, having `break` and
`continue` outside of loops in Python is (to Python) a syntax error, but
our parser happily accepted this broken syntax.
This then caused issues further downstream in the control-flow
construction, as it broke some invariants.
To fix this we now skip the code that would previously fail when the
invariants are broken.
Co-authored-by: yoff <yoff@github.com>
