Towards removing dependency from generic lowering on compilation info.

src/compiler/js-graph.h

Index: src/compiler/js-graph.h
diff --git a/src/compiler/js-graph.h b/src/compiler/js-graph.h
index b016a828c119aea33bf7565b88b96d26ddd0a0e5..89840d6262e07283b5ba9a30126e756dd9bd2d08 100644
--- a/src/compiler/js-graph.h
+++ b/src/compiler/js-graph.h
@@ -73,6 +73,16 @@ class JSGraph : public ZoneObject {
     return Constant(immediate);
   }
 
+  Node* LoadObjectField(Node* object, int offset, Node* context, Node* effect,
+                        MachineType type = kMachAnyTagged) {

[titzer, 2014/08/20 12:54:38]

This doesn't seem like the right place for this method...I think it's better to
keep it contained to JSContextSpecialization.

[sigurds, 2014/08/22 14:01:33]

Done.

+    // TODO(sigurds) Use simplified load here once it is ready.
+    MachineOperatorBuilder machine(zone());
+    Node* field_load = graph()->NewNode(machine.Load(type), object,
+                                        Int32Constant(offset - kHeapObjectTag),
+                                        context, effect);
+    return field_load;
+  }
+
   JSOperatorBuilder* javascript() { return &javascript_; }
   CommonOperatorBuilder* common() { return common_; }
   Graph* graph() { return graph_; }