Demangle C++11 ref-qualifier.

Demangle C++11 ref-qualifier.

include/
	* demangle.h (enum demangle_component_type): Add
	DEMANGLE_COMPONENT_REFERENCE_THIS,
	DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS.
libiberty/
	* cp-demangle.c (d_ref_qualifier): New.
	(d_nested_name, d_function_type): Use it.
	(d_parmlist): Don't get confused by a ref-qualifier.
	(cplus_demangle_type): Reorder ref-qualifier.
	(d_pointer_to_member_type): Likewise.
	(d_dump): Handle DEMANGLE_COMPONENT_REFERENCE_THIS and
	DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS.
	(d_make_comp, has_return_type, d_encoding): Likewise.
	(d_print_comp, d_print_mod_list, d_print_mod): Likewise.
	(d_print_function_type, is_ctor_or_dtor): Likewise.

From-SVN: r197436