c++: Remove redundant calls to type_dependent_expression_p

This simplifies conditions that test both value_dependent_expression_p and
type_dependent_expression_p, since the former predicate now subsumes the latter.

gcc/cp/ChangeLog:

	* decl.c (compute_array_index_type_loc): Remove redundant
	type_dependent_expression_p check that is subsumed by
	value_dependent_expression_p.
	* decl2.c (is_late_template_attribute): Likewise.
	* pt.c (uses_template_parms): Likewise.
	(dependent_template_arg_p): Likewise.

gcc/cp/ChangeLog

+2020-03-27  Patrick Palka  <ppalka@redhat.com>
+
+	* decl.c (compute_array_index_type_loc): Remove redundant
+	type_dependent_expression_p check that is subsumed by
+	value_dependent_expression_p.
+	* decl2.c (is_late_template_attribute): Likewise.
+	* pt.c (uses_template_parms): Likewise.
+	(dependent_template_arg_p): Likewise.
+
 2020-03-26  Marek Polacek  <polacek@redhat.com>
 
 	DR 1710

gcc/cp/decl.c

@@ -10338,8 +10338,7 @@ compute_array_index_type_loc (location_t name_loc, tree name, tree size,
   /* We can only call value_dependent_expression_p on integral constant
      expressions; treat non-constant expressions as dependent, too.  */
   if (processing_template_decl
-      && (type_dependent_expression_p (size)
-	  || !TREE_CONSTANT (size) || value_dependent_expression_p (size)))
+      && (!TREE_CONSTANT (size) || value_dependent_expression_p (size)))
     {
       /* We cannot do any checking for a SIZE that isn't known to be
 	 constant. Just build the index type and mark that it requires

gcc/cp/decl2.c

@@ -1191,8 +1191,7 @@ is_late_template_attribute (tree attr, tree decl)
 	  && identifier_p (t))
 	continue;
 
-      if (value_dependent_expression_p (t)
-	  || type_dependent_expression_p (t))
+      if (value_dependent_expression_p (t))
 	return true;
     }
 

gcc/cp/pt.c

@@ -10525,8 +10525,7 @@ uses_template_parms (tree t)
   else if (t == error_mark_node)
     dependent_p = false;
   else
-    dependent_p = (type_dependent_expression_p (t)
-		   || value_dependent_expression_p (t));
+    dependent_p = value_dependent_expression_p (t);
 
   processing_template_decl = saved_processing_template_decl;
 
@@ -27016,8 +27015,7 @@ dependent_template_arg_p (tree arg)
   else if (TYPE_P (arg))
     return dependent_type_p (arg);
   else
-    return (type_dependent_expression_p (arg)
-	    || value_dependent_expression_p (arg));
+    return value_dependent_expression_p (arg);
 }
 
 /* Returns true if ARGS (a collection of template arguments) contains