* tree-ssa-copy.c (copy_prop_visit_cond_stmt): Use
	COMPARISON_CLASS_P.
	* tree-ssa-pre.c (create_value_expr_from): Use
	CONSTANT_CLASS_P and REFERENCE_CLASS_P.
	* tree-ssa-propagate.c (stmt_makes_single_load,
	stmt_makes_single_store): Use REFERENCE_CLASS_P.
	* tree-vect-transform.c (vect_is_simple_cond): Use
	COMPARISON_CLASS_P.
	* tree-vrp.c (extract_range_from_assert,
	build_assert_expr_for, fp_predicate, has_assert_expr): Use
	COMPARISON_CLASS_P.

From-SVN: r98664