PR lto/52722
PR lto/51765
PR lto/52634
* lto-cgraph.c (compute_ltrans_boundary): When alias is in the boundary,
add its target too.
* lto.c (add_references_to_partition): Add also aliased nodes.
(add_cgraph_node_to_partition,
add_varpool_node_to_partition): Work on nodes, not functions/variables;
when adding alias, add also the aliased object.
* gcc.dg/lto/pr52634_1.c: New testcase.
* gcc.dg/lto/pr52634_0.c: New testcase.
From-SVN: r186252
