Bug 1289366 - added return statement for CharToByte when assertion fails. r=keeler

MozReview-Commit-ID: LDAamOxHdli

--HG--
extra : rebase_source : 7a180b058c3d756074b4cb2f56356c41eaf9919d

security/certverifier/tests/gtest/CTTestUtils.cpp

@@ -125,6 +125,7 @@ CharToByte(char c)
     return c - 'A' + 10;
   }
   MOZ_RELEASE_ASSERT(false);
+  return 0;
 }
 
 static Buffer