Annotations on anonymous classes

[Werner Dietl]

I finished implementing the changed handling for anonymous classes, as
described by Alex in:

http://mail.openjdk.java.net/pipermail/type-annotations-spec-experts/2013-February/000063.html

Steve/SQE: I only added one simple test to newlocations:
http://hg.openjdk.java.net/type-annotations/type-annotations/langtools/file/dbef4179abd8/test/tools/javac/annotations/typeAnnotations/newlocations/AnonymousClass.java

I tested that the annotations end up in the right locations using javap.
None of the existing test styles seemed suitable to test for
annotations on an anonymous class.

Please do expand the tests and let me know if you see any issues with this.

cu, WMD.

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