* cgraph.c (clone_function_name): Take SUFFIX argument; export.
	(cgraph_create_virtual_clone): Take SUFFIX argument; udpate
	use of clone_function_name.
	* cgraph.h (cgraph_create_virtual_clone, 
	cgraph_function_versioning): update prototypes.
	(clone_function_name): Declare.
	* ipa-cp.c (ipcp_insert_stage): Update call of
	cgraph_create_virtual_clone.
	* omp-low.c (create_omp_child_function_name): Use
	cgraph_create_virtual_clone.
	* cgraphunit.c (cgraph_copy_node_for_versioning): Fix edges updating.
	(cgraph_function_versioning): Take SUFFIX argument; produce new name
	and make decl local.

	* gcc.dg/tree-ssa/ipa-cp-1.c: Update testcase.

From-SVN: r160016