Implement C++11 inheriting constructors.
* cp-tree.h (cpp0x_warn_str): Add CPP0X_INHERITING_CTORS.
(DECL_INHERITED_CTOR_BASE, SET_DECL_INHERITED_CTOR_BASE): New.
(special_function_kind): Add sfk_inheriting_constructor.
* class.c (add_method): An inheriting ctor is hidden by a
user-declared one.
(one_inheriting_sig, one_inherited_ctor): New.
(add_implicitly_declared_members): Handle inheriting ctors.
* error.c (maybe_warn_cpp0x): Handle CPP0X_INHERITING_CTORS.
* init.c (emit_mem_initializers): Don't set LOOKUP_DEFAULTED
for an inheriting constructor.
* method.c (type_has_trivial_fn): Handle sfk_inheriting_constructor.
(type_set_nontrivial_flag): Likewise.
(add_one_base_init): Split out from...
(do_build_copy_constructor): ...here. Handle inheriting constructors.
(locate_fn_flags): Handle a list of arg types.
(synthesized_method_walk): Handle inheriting constructors.
(maybe_explain_implicit_delete): Likewise.
(deduce_inheriting_ctor): New.
(implicitly_declare_fn): Handle inheriting constructors.
* name-lookup.c (push_class_level_binding_1): An inheriting constructor
does not declare the base's name.
(do_class_using_decl): Allow inheriting constructors.
* pt.c (template_parms_to_args): Split from current_template_args.
(add_inherited_template_parms): New.
(tsubst_decl): Handle inheriting constructors.
* tree.c (special_function_p): Handle inheriting constructors.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192448
138bc75d-0d04-0410-961f-
82ee72b054a4