StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp: Tweak ContainerNonEmptyMap with "int" instead of "bool", to appease building since r194235.

In ADT/ImmutableSet, ImutProfileInfo<bool> cannot be matched to ImutProfileInteger.
I didn't have idea it'd the right way if PROFILE_INTEGER_INFO(bool) could be added there.