There is already a test for constructor instantiation but it worked "by chance".
The test istestCollectDenormalizationErrorsWithConstructor.
It worked because$reflectionClass->newInstanceArgs($params) works if
one give astring value that should fit in abool type. PHP casts
automatically the value for us. (see:https://3v4l.org/GYr0T)

Now we ensure to not throw an exception if the instantiation cannot be
done. The mismatch is already collected few lines above, so there
nothing to do more