Fix assert memcmp size

ConflictSet.cpp

@@ -4880,7 +4880,7 @@ struct __attribute__((visibility("hidden"))) ConflictSet::Impl {
         auto *results2 = new (arena) Result[count];
         check::Context context2;
         useSequential(reads, results2, count, context2);
-        assert(memcmp(result, results2, count) == 0);
+        assert(memcmp(result, results2, count * sizeof(Result)) == 0);
         assert(context.readContext == context2.readContext);
 #endif
       }