re PR debug/86964 (Too many debug symbols included, especially for extern globals)

re PR debug/86964 (Too many debug symbols included, especially for extern globals)

2019-05-31  Thomas De Schampheleire  <thomas.de_schampheleire@nokia.com>

	PR debug/86964
	* common.opt (feliminate-unused-debug-symbols): Enable by default.
	* doc/invoke.texi (Debugging Options): Document new default of
	-feliminate-unused-debug-symbols and remove restriction to 'stabs'.

	* g++.dg/debug/dwarf2/fesd-any.C: Use
	-fno-eliminate-unused-debug-symbols.
	* g++.dg/debug/dwarf2/fesd-baseonly.C: Likewise.
	* g++.dg/debug/dwarf2/fesd-none.C: Likewise.
	* g++.dg/debug/dwarf2/fesd-reduced.C: Likewise.
	* g++.dg/debug/dwarf2/fesd-sys.C: Likewise.
	* g++.dg/debug/dwarf2/inline-var-1.C: Likewise.
	* g++.dg/debug/enum-2.C: Likewise.
	* gcc.dg/debug/dwarf2/fesd-any.c: Likewise.
	* gcc.dg/debug/dwarf2/fesd-baseonly.c: Likewise.
	* gcc.dg/debug/dwarf2/fesd-none.c: Likewise.
	* gcc.dg/debug/dwarf2/fesd-reduced.c: Likewise.
	* gcc.dg/debug/dwarf2/fesd-sys.c: Likewise.

From-SVN: r271803