tests: int1: More tests for int(str) with default (10) vs 0 base.
tests: int1: More tests for int(str) with default (10) vs 0 base.

Change-Id: I4d12a1243092bc04b3ee9505ffdd92382e3aafc6

pfalcon/micropython,pfalcon/micropython,pfalcon/micropython,pfalcon/micropython,pfalcon/micropython