- Add non-regression tests related to the fallback bean instance producer
- Fix a bug where we would call beanInstanceProducer.produceBeanInstance(Class) even when a named bean was requested.
- Do not call Instance#destroy on bean instances produced by the fallback bean producer. We used to, because we expected the Instance resolution to fail when a bean could not be found. But Instance resolution will never fail in that case, it will just return an Instance whose #isUnsatisfied() method returns true. It happens that calling Instance#destroy did not fail with Weld, because Weld just ignores the call in that case, but other CDI implementations may behave differently: the javadoc, and probably also the CDI spec, are not explicit about what happens in that case.