cgraph_edge refactoring.

cgraph_edge refactoring.

	* cgraph.c (cgraph_edge::remove_callee): Move function to header
	file for being inlined.
	(cgraph_set_edge_callee): Delete.
	(cgraph_edge::redirect_callee): Move function to header file
	for being inlined.
	(cgraph_edge::make_direct): Use new function.
	(cgraph_edge::dump_edge_flags): New function created from
	static dump_edge_flags function.
	(cgraph_node::dump): Use new function.
	(cgraph_edge::verify_count_and_frequency): New function created
	from verify_edge_count_and_frequency.
	(cgraph_edge::verify_corresponds_to_fndecl): New function created
	from verify_edge_corresponds_to_fndecl.
	(verify_edge_corresponds_to_fndecl): Delete.
	(cgraph_node::verify_node): Use new function.
	* cgraph.h (cgraph_edge::set_callee): New function.
	(cgraph_edge::dump_edge_flags): Likewise.
	(cgraph_edge::verify_corresponds_to_fndecl): Likewise.

From-SVN: r219448