[lto] remove dw2_asm_output_data call from write_global_references

[Ollie Wild]

On Mon, Jun 23, 2008 at 2:11 PM, Ollie Wild <aaw@google.com> wrote:
>
> This patch replaces the dw2_asm_output_data calls with calls to
> lang_hooks.lto.write_section_data.

Per out-of-band discusssion with Kenneth Zadeck, I'm checking this in.
 However, to maintain consistency with the LTO reader hooks, I will be
submitting a separate patch to replace the LTO lang_hooks with an
lto_set_out_hooks function.

Ollie