[lto][patch] Remove nodes for extern inline function before writing to disk

[Rafael Espindola]

> Oh, right.  In that case, just add TODO_remove_functions to
> todo_flags_start in pass_ipa_lto_gimple_out.  That should remove the
> unreachable nodes just before we emit gimple.

That would call

cgraph_remove_unreachable_nodes (true, dump_file);

What we need is

cgraph_remove_unreachable_nodes (false, dump_file);

> Diego.
>

Cheers,
-- 
Rafael Avila de Espindola

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