[commit/Ada] Wrong value of packed array on big endian targets

[Joel Brobecker <brobecker at adacore dot com>]

This one is a fix from Paul were a the debugger was printing the wrong
value for a packed array. I will just quote his description of the
problem:

 The value of Fwl1.FWL_MESSAGE in these tests produces incorrect results
 on big-endian machines, because we incorrectly convert integer type moduli
 in the range 2**31 .. 2**32 to moduli in the range 2**64-2**31 .. 2**64 and
 we represent this packed array as a 32-bit unsigned integer.

The problem was exposed as part of a pretty complex set of sources,
so I don't have a small reproducer handy.  Let me know if the above
is not detailed enough, and I will dig further.

2008-09-30  Paul Hilfinger  <hilfinger@adacore.com>

        * ada-lang.c (ada_modulus): Correct to avoid sign problem with
        moduli >= 2**31.

Tested on x86-linux. No regression.
Checked in.

-- 
Joel

Attachment: moduli.diff
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