Java 7 diamond is not parsed by JastAdd

[Jesper Öqvist]

JastAdd2 2.1.11-22-g493d35b

JastAdd does not allow the Java 7 diamond feature to be used (type inference for class instance expressions). For example, a statement like this will not be parsed by JastAdd:

 Map<A, B> map = new HashMap<>();

[Jesper Öqvist]

This was fixed in commit 8540f77