* lto-cgraph.c (compute_ltrans_boundary): Do not care about aliases.
	* lto-partition.c (partition_symbol_p): Forward declare.
	(add_references_to_partition): Reimplement using partition_symbol_p.
	(add_aliases_to_partition): Break out from add_references_to_partition;
	reimplement using partition_symbol_p.
	(add_cgraph_node_to_partition_1): Handle callees using partition_symbol_p;
	add sanity checks.
	(add_varpool_node_to_partition): Use add_aliases_to_partition.
	(partition_varpool_node_p): Do not special case aliases.

From-SVN: r191129