BFD_ASSEMBLER.
(filename_list_head, filename_list_tail): Likewise.
(c_section_symbol): Remove unused BFD_ASSEMBLER version.
(obj_coff_endef, BFD_ASSEMBLER version): Don't set the debugging
flag for C_MOS, C_MOE, C_MOU, or C_EOS symbols, since they should
have a section of N_ABS rather than N_DEBUG. If we do a merge,
remove the new symbol from the list.
(obj_coff_endef, both versions): Call tag_insert even if there is
an old symbol with the same name, if the old symbol does not
happen to be a tag.
(coff_frob_symbol): Check SF_GET_TAG, C_EOF, and C_FILE outside of
the SF_GET_DEBUG condition. Don't call SA_SET_SYM_ENDNDX with a
symbol that will be moved to the end of the symbol list.
(coff_adjust_section_syms): Always call section_symbol for .text,
.data, and .bss.
(coff_frob_section): Likewise. Also, remove unused variable
strname.