dwarf2out.c (text_section_used, [...]): New.

dwarf2out.c (text_section_used, [...]): New.

	* dwarf2out.c (text_section_used, cold_text_section_used,
	cold_text_section, dwarf2out_note_section_used): New.
	(dwarf2out_init): Initialize cold_text_section.
	(dwarf2out_switch_text_section, dwarf2out_begin_function): Call
	dwarf2out_note_section_used.
	(size_of_aranges): Only count entry for text section if it was
	used.  Count entry for cold text section if it was used.
	(output_aranges): Only output entries for text section and cold
	text section if they were used.

testsuite:
	* gcc.dg/debug/dwarf2/aranges-fnsec-1.c: New test.

From-SVN: r127627