* dwarf2.h (enum dwarf_attribute): Add DW_AT_GNU_vector.
        * dwarf2out.c (dwarf_attr_name): Support it.
        (gen_array_type_die): Emit it.
        (lookup_type_die): No special handling for VECTOR_TYPE.
        (gen_type_die): Hand VECTOR_TYPE off to gen_array_type_die.

From-SVN: r52724