Support namespaces in DWARF 2 output.
* dwarf2out.c (gen_namespace_die): New function.
(force_namespace_die, setup_namespace_context): New fns.
(declare_in_namespace): New fn.
(gen_decl_die): Call declare_in_namespace. Handle namespaces.
(dwarf2out_decl): Handle namespaces.
(scope_die_for): Pass through a namespace scope.
(class_scope_p): Rename to class_or_namespace_scope_p.
(gen_subprogram_die, gen_variable_die): Adjust.
(gen_struct_or_union_die): Always emit a declaration
if context_die is a namespace.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@74436
138bc75d-0d04-0410-961f-
82ee72b054a4