files are generated. I noticed that these two files were placed
in the original source tree and also later in the build tree --
the rrclass.h was identical but the rrtype.h files were different.

For the tests look in the top_srcdir for includes also.
This should fix the problem I saw on FreeBSD when it was building
tests using a tarball from source and building in a different location
than the source:

	In file included from ../../../../../src/lib/dns/tests/unittest_util.cc:29:
	../../../../../src/lib/dns/tests/unittest_util.h:77: error: expected unqualified-id before '::' token


git-svn-id: svn://bind10.isc.org/svn/bind10/trunk@1653 e5f2f494-b856-4b98-b285-d166d9295462