* cgraphclones.c (cgraph_node::create_clone): Use merged_comdat.
	* cgraph.c (cgraph_node::dump): Dump merged_comdat.
	* ipa-icf.c (sem_function::merge): Drop merged_comdat when merging
	comdat and non-comdat.
	* cgraph.h (cgraph_node): Rename merged to merged_comdat.
	* ipa-inline-analysis.c (simple_edge_hints): Check both merged_comdat
	and icf_merged.

	* lto-symtab.c (lto_cgraph_replace_node): Update code computing
	merged_comdat.

From-SVN: r231291