[stubs] Call interface descriptors cleanup.

src/compiler/node.cc

Index: src/compiler/node.cc
diff --git a/src/compiler/node.cc b/src/compiler/node.cc
index e4e22b402357ef1dbe7f0984612eff5081c2e070..f4e7b17ed235fda2c6d0e7b6ac19e950c98e7d26 100644
--- a/src/compiler/node.cc
+++ b/src/compiler/node.cc
@@ -193,6 +193,22 @@ void Node::InsertInput(Zone* zone, int index, Node* new_to) {
   Verify();
 }
 
+void Node::InsertInputs(Zone* zone, int index, int count) {
+  DCHECK_NOT_NULL(zone);
+  DCHECK_LE(0, index);
+  DCHECK_LT(0, count);
+  DCHECK_LT(index, InputCount());
+  for (int i = 0; i < count; i++) {
+    AppendInput(zone, InputAt(Max(InputCount() - count, 0)));
+  }
+  for (int i = InputCount() - count - 1; i >= Max(index, count); --i) {
+    ReplaceInput(i, InputAt(i - count));
+  }
+  for (int i = 0; i < count; i++) {
+    ReplaceInput(index + i, nullptr);
+  }
+  Verify();
+}
 
 void Node::RemoveInput(int index) {
   DCHECK_LE(0, index);