Update to splay-tree.h for 64-bit Windows host

[Andreas Schwab]

Kai Tietz <Kai.Tietz@onevision.com> writes:

> It seems to be that gengtype is the reason why it fails, and it starts to 
> magically work if the spaces before all "typedef"s  are removed. I don't 
> know what it is, but I have a strong feeling, that the whitespace parsing 
> in the lexer script of gengtype is the reason.

The lexer explicitly only matches declarations starting in column 1.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
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