* elfcode.h (bfd_section_from_shdr): Use bfd_make_section_anyway

	* elfcode.h (bfd_section_from_shdr): Use bfd_make_section_anyway
	to create sections.  Check return value of recursive calls.
	(bfd_section_from_phdr): Check return value of bfd_make_section.
	(elf_symbol_from_bfd_symbol): Likewise.
	(elf_object_p): Check return value of bfd_section_from_shdr.
	(section_from_elf_index): Likewise.
	(elf_slurp_symbol_table): Check return value of
	section_from_elf_index.
	(bfd_prstatus): Return boolean value.  Check return value of
	bfd_make_section.
	(bfd_fpregset): Likewise.
	(bfd_prpsinfo): Return boolean value.
	(elf_corefile_note): Check return values of bfd_prstatus,
	bfd_fpregset, and bfd_prpsinfo.
	(elf_core_file_p): Check return value of elf_corefile_note.