* dwarf2out.c (struct die_struct): Add dumped_early field.

	* dwarf2out.c (struct die_struct): Add dumped_early field.
	(reparent_child): New.
	(splice_child_die): Use reparent_child.
	(gen_subprogram_die): Do not regenerate parameters if previously
	dumped.
	(gen_variable_die): Fix parent of decls that have been dumped
	early to reflect correct context.
	Do not regenerate decls if previously dumped.
	(dwarf2out_decl): Add return value.
	(dwarf2out_early_decl): Set dumped_early bit.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@214909 138bc75d-0d04-0410-961f-82ee72b054a4