clang-tlb-import: (not) handle multidemensional arrays

multidemensional-array crash in the registry after adding multiple of
them because the "isSame" operation does not handle them correctly...
which is  why the test in "examples.hh" did not crash before...

I read somewhere they are not supported by orocos, so...?

also add explicit test-case -- which should just not crash

there is the problem that this warning might not be loud enough?

Signed-off-by: Martin Zenzes <martin.zenzes@dfki.de>