Update comment in tree-vrp.h

2017-11-06  Marc Glisse  <marc.glisse@inria.fr>

	* tree-vrp.h (enum value_range_type): Update stale comment.

From-SVN: r254478

gcc/ChangeLog

+2017-11-06  Marc Glisse  <marc.glisse@inria.fr>
+
+	* tree-vrp.h (enum value_range_type): Update stale comment.
+
 2017-11-06  Richard Sandiford  <richard.sandiford@linaro.org>
 	    Alan Hayward  <alan.hayward@arm.com>
 	    David Sherwood  <david.sherwood@arm.com>

gcc/tree-vrp.h

@@ -20,7 +20,7 @@ along with GCC; see the file COPYING3.  If not see
 #ifndef GCC_TREE_VRP_H
 #define GCC_TREE_VRP_H
 
-/* Type of value ranges.  See value_range_d In tree-vrp.c for a
+/* Type of value ranges.  See value_range below for a
    description of these types.  */
 enum value_range_type { VR_UNDEFINED, VR_RANGE,
 			VR_ANTI_RANGE, VR_VARYING, VR_LAST };