bfd macro conversion to inline functions, section

bfd macro conversion to inline functions, section

This one exposed a bug in tic6x gas, found with inline function
parameter type checking.  struct bfd_section and struct bfd_symbol
both have a flags field, so bfd_is_com_section (symbol) compiled OK
when bfd_is_com_section was a macro but didn't special case common
symbols.

bfd/
	* bfd-in.h (bfd_section_name, bfd_section_size, bfd_section_vma),
	(bfd_section_lma, bfd_section_alignment, bfd_section_flags),
	(bfd_section_userdata, bfd_is_com_section, discarded_section),
	(bfd_get_section_limit_octets, bfd_get_section_limit): Delete macros.
	* bfd.c (bfd_get_section_limit_octets, bfd_get_section_limit),
	(bfd_section_list_remove, bfd_section_list_append),
	(bfd_section_list_prepend, bfd_section_list_insert_after),
	(bfd_section_list_insert_before, bfd_section_removed_from_list):
	New inline functions.
	* section.c (bfd_is_und_section, bfd_is_abs_section),
	(bfd_is_ind_section, bfd_is_const_section, bfd_section_list_remove),
	(bfd_section_list_append, bfd_section_list_prepend),
	(bfd_section_list_insert_after, bfd_section_list_insert_before),
	(bfd_section_removed_from_list): Delete macros.
	(bfd_section_name, bfd_section_size, bfd_section_vma),
	(bfd_section_lma, bfd_section_alignment, bfd_section_flags),
	(bfd_section_userdata, bfd_is_com_section, bfd_is_und_section),
	(bfd_is_abs_section, bfd_is_ind_section, bfd_is_const_section),
	(discarded_section): New inline functions.
	* bfd-in2.h: Regenerate.
gas/
	* config/tc-tic6x.c (tc_gen_reloc): Correct common symbol check.
ld/
	* emultempl/xtensaelf.em (xtensa_get_section_deps): Comment.
	Use bfd_section_userdata.
	(xtensa_set_section_deps): Use bfd_set_section_userdata.
	* ldlang.c (lang_output_section_get): Use bfd_section_userdata.
	(sort_def_symbol): Likewise, and bfd_set_section_userdata.
	(init_os): Use bfd_set_section_userdata.
	(print_all_symbols): Use bfd_section_userdata.
	* ldlang.h (get_userdata): Delete.