Add union.test.

Add union.test.

2005-05-15  Matthias Clasen  <mclasen@redhat.com>

        * tests/roundtrips.sh (SIMPLE_TESTS): Add union.test.

        * tests/union.test: Add a union test.

        * src/generate.c: Handle unions.

        * src/girepository.h:
        * src/ginfo.c: Add GIUnionInfo and functions to access it.

        * src/gidlnode.c: Handle GIdlNodeUnion nodes.

        * src/gidlparser.c (start_union): Parse <union> elements.

        * src/gidlnode.h: Add a GIdlNodeUnion.

        * gidl.dtd: Add a <union> element.

        * src/gmetadata.c (g_metadata_check_sanity): Check
        union_blob_size.

        * src/gmetadata.h: Add union_blob_size to Header,
        add a UnionBlob.

        * metadata-format.txt: Add a UnionBlob.