re PR ipa/69589 (ICE in initialize_node_lattices, at ipa-cp.c:971)
PR lto/69589
* cgraph.c (cgraph_node::dump): Dump split_part and indirect_call_target.
* cgraph.h (cgraph_node): Add indirect_call_target flag.
* ipa.c (has_addr_references_p): Cleanup.
(is_indirect_call_target_p): New.
(walk_polymorphic_call_targets): Do not mark virtuals that may be
called indirectly as local.
(symbol_table::remove_unreachable_nodes): Compute indirect_call_target.
* g++.dg/lto/pr69589_0.C: New testcase
* g++.dg/lto/pr69589_1.C: New testcase
From-SVN: r234115