* breakpoint.h (struct bp_location): Change type of section

	* breakpoint.h (struct bp_location): Change type of section
	member to "struct obj_section *".
	* tracepoint.h (struct tracepoint): Likewise.
	* symtab.h (struct general_symbol_info): Replace bfd_section
	member with obj_section.
	(struct symtab_and_line): Change type of section member to
	"struct obj_section *".
	(SYMBOL_BFD_SECTION): Remove macro, replace by ...
	(SYMBOL_OBJ_SECTION): ... this.

	* minsym.c (prim_record_minimal_symbol_and_info): Record symbol
	section as obj_section instead of bfd_section.

	* ada-lang.c (ada_decode_symbol): Use gsymbol->obj_section
	directly instead of looking of obj_section from bfd_section.

	* objfiles.h (find_pc_sect_section): Remove.
	* objfiles.c (find_pc_sect_section): Remove.
	(find_pc_section): Inline find_pc_sect_section code.

	* symfile.h (find_pc_overlay): Return struct obj_section *.
	(find_pc_mapped_section): Likewise.
	(section_is_overlay, section_is_mapped): Change type of section
	argument to struct obj_section *.
	(pc_in_mapped_range, pc_in_unmapped_range): Likewise.
	(overlay_mapped_address, overlay_unmapped_address): Likewise.
	(symbol_overlayed_address): Likewise.
	* symtab.h (symbol_overlayed_address): Likewise.
	* symfile.c (overlay_is_mapped): Remove.
	(section_is_mapped): Inline overlay_is_mapped code.  Update.
	(overlay_invalidate_all): Update.
	(section_is_overlay): Change section argument to type
	"struct obj_section *".  Use bfd_ methods.
	(pc_in_unmapped_range): Likewise.  Handle relocated sections.
	(pc_in_mapped_range): Likewise.  Handle relocated sections.
	(sections_overlap): Likewise.
	(overlay_unmapped_address): Likewise.
	(overlay_mapped_address): Likewise.
	(symbol_overlayed_address): Likewise.
	(find_pc_overlay): Return struct obj_section *.
	(find_pc_mapped_section): Likewise.
	(list_overlays_command): Update.
	(map_overlay_command, unmap_overlay_command): Update.
	(simple_overlay_update): Update.

	* block.h (blockvector_for_pc_sect): Change section argument
	to type "struct obj_section *".
	(block_for_pc_sect): Likewise.
	* block.c (blockvector_for_pc_sect): Change section argument
	to type "struct obj_section *".
	(block_for_pc_sect): Likewise.
	* symtab.h (find_pc_sect_function, find_pc_sect_psymtab,
	find_pc_sect_symtab, find_pc_sect_psymbol, find_pc_sect_line,
	lookup_minimal_symbol_by_pc_section, find_function_start_pc): Likewise.
	(matching_bfd_sections): Rename to ...
	(matching_obj_sections): ... this.  Update argument types.
	* blockframe.c (find_pc_sect_function): Likewise.
	* breakpoint.c (describe_other_breakpoints): Likewise.
	(breakpoint_has_pc, check_duplicates_for): Likewise.
	* minsyms.c (lookup_minimal_symbol_by_pc_section_1): Likewise.
	(lookup_minimal_symbol_by_pc_section): Likewise.
	* symtab.c (find_pc_sect_psymtab_closer): Likewise.
	(find_pc_sect_psymtab, find_pc_sect_psymbol, find_pc_sect_symtab,
	find_pc_sect_line, find_function_start_pc): Likewise.
	(matching_bfd_sections): Rename to ...
	(matching_obj_sections): ... this.  Update argument types.

	* blockframe.c (find_pc_partial_function): Update to section
	type changes.  No longer call find_pc_sect_section.
	(cache_pc_function_section): Change to type "struct obj_section *".
	* breakpoint.c (resolve_sal_pc): Update to section type changes.
	* exec.c (xfer_memory): Likewise.
	* findvar.c (read_var_value): Likewise.
	* infcmd.c (jump_command): Likewise.
	* linespec.c (minsym_found): Likewise.
	* maint.c (maintenance_translate_address): Likewise.
	* minsyms.c (lookup_minimal_symbol_by_pc_section_1): Likewise.
	(lookup_solib_trampoline_symbol_by_pc): Likewise.
	* parse.c (write_exp_msymbol): Likewise.
	* printcmd.c (build_address_symbolic): Likewise.
	(address_info, sym_info): Likewise.
	* symmisc.c (dump_msymbols, print_symbol): Likewise.
	* symtab.c (fixup_section): Likewise.
	(fixup_symbol_section, fixup_psymbol_section): Likewise.
	(find_pc_line, find_function_start_sal): Likewise.
	* target.c (memory_xfer_partial): Likewise.
	* hppa-hpux-tdep.c (hppa64_hpux_in_solib_call_trampoline): Likewise.
	* spu-tdep.c (spu_overlay_update): Likewise.