c++/9820: [3.3/3.4 regression] ice in build_baselink (templates)

[Janis Johnson]

The submitter says this test case should be valid,  but
GCC 3.0.4 and the 3.2-branch both report errors.  I was
planning to hunt for the patch that caused the regression,
but if there's a test case that ICEs on legal code, I'd prefer
to use that one.

Output from GCC 3.2.2 20021220 (prerelease) with -w:

9820.C: In instantiation of `IsFunctionT<int>':
9820.C:23:   instantiated from `IsClassT<int>'
9820.C:23:   instantiated from `void check() [with T = int]'
9820.C:29:   instantiated from here
9820.C:23: no method `IsFunctionT<int>::test<int>'
9820.C:23: enumerator value for `Yes' not integer constant

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9820