[binutils-gdb] bfd: Fix left shift of negative value.

[sergiodj+buildbot@redhat.com]

*** TEST RESULTS FOR COMMIT 29f628db8835fd86b85ffb40d4a9ed5b1c28f1e6 ***

Author: Dominik Vogt <vogt@linux.vnet.ibm.com>
Branch: master
Commit: 29f628db8835fd86b85ffb40d4a9ed5b1c28f1e6

bfd: Fix left shift of negative value.

This patch fixes all occurences of left-shifting negative constants in C code
which is undefined by the C standard.

bfd/ChangeLog:

        * elf64-ppc.c (ppc64_elf_size_stubs, ppc64_elf_build_stubs): Fix left
        shift of negative value.
        * libbfd.c (safe_read_leb128): Likewise.
        * dwarf2.c (place_sections): Likewise.
        * bfd-in.h (align_power): Likewise.
        * bfd-in2.h (align_power): Likewise.