[patch lto]: Remove two warnings

[Kai Tietz]

Hello,

This patch addresses two warnings I saw by using gcc 3.3.4for building.

ChangeLog gcc/lto

2010-06-09  Kai Tietz

        * lto.c (lto_resolution_read):  Pre-initialize local variable r.
        * lto-coff.c (coff_write_object_file): Add braces to if.

Regards,
 i.A. Kai Tietz

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