* class.c (build_vtable): Do not set DECL_VISIBILITY here.
	(check_field_decls): Or here.
	(check_methods): Or here.
	(initialize_array): Don't mess with DECL_CONTEXT.
	* cp-tree.h (start_decl): Adjust prototype.
	(determine_visibility): New function.
	* decl.c (duplicate_decls): Remove checks for hidden "operator
	new".
	(build_library_fn_1): Give all library functions default
	visibility.
	(start_decl): Add pop_scope_p parameter.  Tidy.
	(cp_finish_decl): Do not pop scopes here.  Call
	determine_visibility for variable definitions.
	(start_preparsed_function): Call determine_visibility.
	* decl2.c (determine_visibility): New function.
	* method.c (use_thunk): Fix formatting.
	* parser.c (cp_parser_condition): Adjust calls to start_decl.
	(cp_parser_init_declarator): Likewise.
	* pt.c (instantiate_decl): Always call pop_nested_class.
	* rtti.c (get_tinfo_decl): Do not set DECL_VISIBILITY.
	(tinfo_base_init): Likewise.

	* g++.dg/ext/visibility/assign1.C: New test.
	* g++.dg/ext/visibility/new1.C: Likewise.

From-SVN: r85543