[Gm2] GM2 ISO LongStr imports

[Iztok]

MODULE longstrimp;

FROM LongStr IMPORT ConvResults;

END longstrimp.

> gm2 -Wiso -c -I. longstrimp.mod
longstrimp.mod:5:undeclared symbol (ConvResults)
/usr/local/gcc-3.2+gm2/lib/gcc-lib/i686-pc-linux-gnu/3.2/gm2/iso/LongStr.def:49:undeclared 
identifier(s) in EXPORT list of DEFINITION MODULE

1. ConvResults is in ..../iso/LongStr.def

2. No need for EXPORT clause in ISO M2.


But .. it seems that this is the same problem as with 
BITSET->BITSET32->BITS32 (seems that the gm2 has problems with the 
cascading types) because the example works if LongStr is replaced with 
ConvTypes.

I.