re PR ipa/69589 (ICE in initialize_node_lattices, at ipa-cp.c:971)

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