Renumbered TargetType

[Werner Dietl]

Jon, all,

in this changeset:

http://hg.openjdk.java.net/type-annotations/type-annotations/langtools/rev/59b64d32754e

I performed the renumbering that Mike performed recently.
I also added basic support for all the Lambda constants, but did not
finish implementing Lambda yet.
I implemented type annotations in casts with intersection types and
added a simple test case.

I'm not sure whether you want to push this separately to TL or want to
wait until Lambda is fully implemented.

cu, WMD.

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