[turbofan] Add length operand to LoadElement and StoreElement.

test/cctest/compiler/simplified-graph-builder.h

Index: test/cctest/compiler/simplified-graph-builder.h
diff --git a/test/cctest/compiler/simplified-graph-builder.h b/test/cctest/compiler/simplified-graph-builder.h
index 586b39f0d0271a2bbb8dc362846e2eefcb0413bd..1b637b7676146c47b53e289d5b3c1456673b5c48 100644
--- a/test/cctest/compiler/simplified-graph-builder.h
+++ b/test/cctest/compiler/simplified-graph-builder.h
@@ -127,12 +127,14 @@ class SimplifiedGraphBuilder : public GraphBuilder {
   Node* StoreField(const FieldAccess& access, Node* object, Node* value) {
     return NewNode(simplified()->StoreField(access), object, value);
   }
-  Node* LoadElement(const ElementAccess& access, Node* object, Node* index) {
-    return NewNode(simplified()->LoadElement(access), object, index);
+  Node* LoadElement(const ElementAccess& access, Node* object, Node* index,
+                    Node* length) {
+    return NewNode(simplified()->LoadElement(access), object, index, length);
   }
   Node* StoreElement(const ElementAccess& access, Node* object, Node* index,
-                     Node* value) {
-    return NewNode(simplified()->StoreElement(access), object, index, value);
+                     Node* length, Node* value) {
+    return NewNode(simplified()->StoreElement(access), object, index, length,
+                   value);
   }
 
  protected: