Automatic nested condition handling doesn't work when conditions are at the method level

[aclement]

The analysis system can handle this:

    @Conditional(Foo.class)

and recognize that the referenced condition class extends AbstractNestedCondition so contains subtypes that may have further conditions on them:

class Foo extends AllNestedConditions {

    @ConditionalOnProperty(name="something")
    static class FirstPropCheckCondition { }

    @ConditionalOnProperty(name="something")
    static class SecondPropCheckCondition { }

}

In this case it should automatically register (for reflective/resource access) the subclasses inside Foo.

However, it currently only recognizes this pattern if used at the type level, not at the method level.