re PR middle-end/84723 (ICE in create_target_clone, at multiple_target.c:275)

re PR middle-end/84723 (ICE in create_target_clone, at multiple_target.c:275)

	PR middle-end/84723
	* multiple_target.c: Include tree-inline.h and intl.h.
	(expand_target_clones): Diagnose and fail if node->definition and
	!tree_versionable_function_p (node->decl).

	* gcc.target/i386/pr84723-1.c: New test.
	* gcc.target/i386/pr84723-2.c: New test.
	* gcc.target/i386/pr84723-3.c: New test.
	* gcc.target/i386/pr84723-4.c: New test.
	* gcc.target/i386/pr84723-5.c: New test.

From-SVN: r258316