[2/6] widl: Ignore assigment of a duplicate uuid.

[Dmitry Timoshkov]

Huw Davies <huw at codeweavers.com> wrote:

> ../../tools/widl/widl -o msxml3_v1_t.res -m32 -I. -I../../include -I/usr/include/libxml2 -D__WINESRC__ \
>   msxml3_v1.idl
> warning: duplicate uuid {50ea08b4-dd1b-4664-9a50-c2f40f4bd79a}
> (plus the same warnings in other msxml* directories).
> 
> This is ISchema.  Not sure why this is happening.

The warning is emitted because the hash keys returned by ctl2_hash_guid()
for IXMLDOMSchemaCollection2 (50ea08b0-dd1b-4664-9a50-c2f40f4bd79a) and
ISchema (50ea08b4-dd1b-4664-9a50-c2f40f4bd79a) are the same. It seems to
me a bit inadequate that ctl2_hash_guid() does 'return hash & 0x1f'. But
I think that fixing this problem is outside of the scope of my patches
and deserves a separate investigation.

-- 
Dmitry.