[turbofan]: Integrate basic type feedback for property accesses.

src/compiler/node-properties.cc

Index: src/compiler/node-properties.cc
diff --git a/src/compiler/node-properties.cc b/src/compiler/node-properties.cc
index 76ac16283c2f113088e003b9d357b27af9a34103..8956915a2c5fd8085937d2f8b6e8914f05ed8844 100644
--- a/src/compiler/node-properties.cc
+++ b/src/compiler/node-properties.cc
@@ -2,9 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "src/compiler/node-properties.h"
-
 #include "src/compiler/common-operator.h"
+#include "src/compiler/graph.h"
+#include "src/compiler/node-properties.h"
 #include "src/compiler/operator-properties.h"
 
 namespace v8 {
@@ -151,6 +151,22 @@ void NodeProperties::RemoveNonValueInputs(Node* node) {
 }
 
 
+void NodeProperties::MergeControlToEnd(Graph* graph,
+                                       CommonOperatorBuilder* common,
+                                       Node* node) {
+  // Connect the node to the merge exiting the graph.
+  Node* end_pred = NodeProperties::GetControlInput(graph->end());
+  if (end_pred->opcode() == IrOpcode::kMerge) {
+    int inputs = end_pred->op()->ControlInputCount() + 1;
+    end_pred->AppendInput(graph->zone(), node);
+    end_pred->set_op(common->Merge(inputs));
+  } else {
+    Node* merge = graph->NewNode(common->Merge(2), end_pred, node);
+    NodeProperties::ReplaceControlInput(graph->end(), merge);
+  }
+}
+
+
 // static
 void NodeProperties::ReplaceWithValue(Node* node, Node* value, Node* effect,
                                       Node* control) {