CATCALLs when running tests via geant

I'm trying to run the xslt tests using geant test_debug_ge, and I'm
getting a lot of messages identical to this one:

[CATCALL] class TUPLE [NATURAL_32, INTEGER] (ANY,97,8): type
'NATURAL_16' of actual argument #1 does not conform to type
'INTEGER_16' of formal argument in feature `is_equal' in class
'INTEGER_16' 


as well as many other CATCALL messages.

How do I get additional information to try to track down the problems?
-- 
Colin Adams
Preston Lancashire

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