Interface method regression test

[Tom Tromey]

Bryce> This is a regression test I wrote to check the new interface
Bryce> method lookup code.  It might be nice to add it to the test
Bryce> suite, but I'm not sure exactly where/how it should go in. Its
Bryce> an output based test but its complicated because it consists of
Bryce> multiple .java files.

I'd definitely like to get it into the test suite.

Could we change it so that all the classes are in a single file?
IE by making most of them not be public?

That would let us drop it in relatively easily.

Tom