Static objects initialization wrongly reported as pseudo tested

[tmortagne]

It's probably the same fix than #73 but creating a new issue since the use case is different.

In xwiki-platform-security-api most of the rights are manipulated as static object and like with #73 the initialization method of those Right instance are only associated to the very first test which use those which make pitest/Descartes think it's the only one which validate it.

See org.xwiki.security.authorization.Right (Issues: 3) in the following report

201809111150.zip