cgraph.c (cgraph_clone_node): Take decl argument and insert clone into hash when it is different from orig.

	* cgraph.c (cgraph_clone_node): Take decl argument and insert
	clone into hash when it is different from orig.
	(cgraph_create_virtual_clone): Update use of cgraph_clone_node.
	* cgraph.h (cgraph_clone_node): Update prototype.
	* lto-cgrpah.c (lto_cgraph_encoder_new): Create body map.
	(lto_cgraph_encoder_delete): Delete body map.
	(lto_cgraph_encoder_size): Move to header.
	(lto_cgraph_encoder_encode_body_p, lto_set_cgraph_encoder_encode_body): New.
	(lto_output_node): Do not take written_decls argument; output clone_of
	pointer.
	(add_node_to): Add include_body_argument; call
	lto_set_cgraph_encoder_encode_body on master of the clone.
	(add_references): Update use of add_node_to.
	(compute_ltrans_boundary): Likewise.
	(output_cgraph): Do not create written_decls bitmap.
	(input_node): Take nodes argument; stream in clone_of correctly.
	(input_cgraph_1): Update use of input_node.
	* lto-streamer-out.c (lto_output): Use encoder info to decide
	what bodies to output.
	* ipa-inline.c (cgraph_clone_inlined_nodes,
	cgraph_decide_recursive_inlining): Update call of cgraph_clone_node.
	* lto-streamer.h (lto_cgraph_encoder_d): Add body.
	(lto_cgraph_encoder_size): Define here.
	(lto_cgraph_encoder_encode_body_p, lto_varpool_encoder_encode_body_p):
	Declare.

From-SVN: r159466