* elf-bfd.h (struct elf_assign_sym_version_info): Delete.
(struct elf_info_failed, struct elf_find_verdep_info): Move to..
* elflink.c: ..here, somewhat modified.
* elf-bfd.h (_bfd_elf_add_default_symbol, _bfd_elf_export_symbol,
_bfd_elf_link_find_version_dependencies,
_bfd_elf_link_assign_sym_version, _bfd_elf_link_size_reloc_section,
_bfd_elf_fix_symbol_flags, _bfd_elf_adjust_dynamic_symbol,
_bfd_elf_link_sec_merge_syms, bfd_elf_link_mark_dynamic_symbol): Don't
declare..
* elflink.c: ..and make static here.
(_bfd_elf_link_find_version_dependencies): Adjust for removal
of output_bfd from struct elf_find_verdep_info.
(_bfd_elf_link_assign_sym_version): Similarly adjust to use
struct elf_info_failed.
(bfd_elf_size_dynamic_sections): Adjust.