gcc:

	* config/darwin.c (darwin_asm_named_section): Check for __DWARF
	sections and call darwin_asm_dwarf_section() to handle them.
	(darwin_asm_dwarf_section): New.
	(darwin_file_start): Remove code emitting dwarf section symbols.

testsuite:

	* g++.dg/debug/dwarf2/pubnames-1.C: Amend to check for only one instance
	of debug_pubnames on darwin.

From-SVN: r166174