1. Search for increment function in range element type, not in inferred
induction variable type
(which can be inappropriate, e.g., 'Nothing' in case of 'continue').
2. Handle nested loops with shared exit labels
(generated by JVM_IR for KT-37370 case).
KT-37370 KT-37373
unsigned ranges/progressions.
The tests pass in JVM_IR for signed, but fail for unsigned due to
inlining being broken. We can disable the JVM_IR tests for unsigned,
while keeping them enabled for signed, to get better test coverage in
the interim until inlining is fixed.
simon.ogorodnik