Make debug_tree() print the length of a TREE_VEC

gcc/ChangeLog:

	* print-tree.c (print_node) [TREE_VEC]: Print its length.

From-SVN: r225100

gcc/ChangeLog

+2015-06-27  Patrick Palka  <ppalka@gcc.gnu.org>
+
+	* print-tree.c (print_node) [TREE_VEC]: Print its length.
+
 2015-06-26  Andrew MacLeod  <amacleod@redhat.com>
 
 	* gimple.c (gimple_call_set_fndecl): Remove.

gcc/print-tree.c

@@ -807,6 +807,7 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
 
 	case TREE_VEC:
 	  len = TREE_VEC_LENGTH (node);
+	  fprintf (file, " length %d", len);
 	  for (i = 0; i < len; i++)
 	    if (TREE_VEC_ELT (node, i))
 	      {