libiberty/cplus-dem.c, ada-demangle: plug memory leak.

[Jeff Law]

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On 03/04/11 11:36, Tom Tromey wrote:
> Michael> How come 'xfree' in gdb/utils.c still checks for null?
> 
> I don't know, but I assume just because nobody has bothered to remove
> the check.  I think we also still have code doing `if (x) xfree (x);',
> which is kind of doubly wrong :)
We probably have similar crud in GCC as well; I vaguely recall a
discussion and patches which removed some of this crud, but I doubt it's
all been cleaned up.

jeff
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