Spec update for repeatable/containing relationship

[Alex Buckley]

I just updated the spec to slightly tighten the two-way relationship 
between a repeatable and a containing annotation type when compiling a 
prospective containing annotation type. Previously, its @ContainerFor 
merely needed to agree with the containee's @ContainedBy, but that 
allowed deformities in the structure of the prospective containing 
annotation type (e.g. the return type of its value() element). In 
contrast, we always required that compiling a prospective repeatable 
annotation type needed to see an @ContainedBy that named a well-formed 
containing annotation type.

The change is a single paragraph on page 4 of 
http://cr.openjdk.java.net/~abuckley/8misc.pdf, and the corresponding 
reflection rule on page 10. I extended the example on page 4 too.

Separately, I would be grateful if any EE engineers on this list could 
be sure they agree with the detailed reflection examples in section 1.2.

Alex