Refactors checker.h to use if statements instead of ternary operators for better readability.
Refactors checker.h to use if statements instead of ternary operators for better readability.

PiperOrigin-RevId: 471621696
Change-Id: I603e5707d896deef3a015c70ceac9778e360f72f

abseil/abseil-cpp,abseil/abseil-cpp,abseil/abseil-cpp,abseil/abseil-cpp