* elf32-mn10300.c (elf32_mn10300_link_hash_entry): New structure

    * elf32-mn10300.c (elf32_mn10300_link_hash_entry): New structure
        for derived elf linker hash table entries.  References to
        elf_link_hash_entry changed appropriately.
        (elf32_mn10300_link_hash_table): New structure for derived elf
        linker hash table.
        (elf32_mn10300_hash_table): Define.
        (elf32_mn10300_link_hash_traverse): Likewise.
        (elf32_mn10300_link_hash_newfunc): New function.
        (elf32_mn10300_link_hash_table_create): Likewise.
        (elf32_mn10300_finish_hash_table_entry): Likewise.
        (mn10300_elf_relax_section): Handle "call" -> "calls", removal
        of prologue code, and call:32->call:16 relaxing.
        (compute_function_info: New function.
        (bfd_elf32_bfd_ilink_hash_table_create): Define.