[turbofan] Get rid of type lower bounds.

src/compiler/js-type-feedback-lowering.cc

Index: src/compiler/js-type-feedback-lowering.cc
diff --git a/src/compiler/js-type-feedback-lowering.cc b/src/compiler/js-type-feedback-lowering.cc
index 17effa4779d68d0ef47aab9e384469e9ffb7d30e..d97a305d08cdcb822fb6305a4d6ee0f1c2cabf7e 100644
--- a/src/compiler/js-type-feedback-lowering.cc
+++ b/src/compiler/js-type-feedback-lowering.cc
@@ -36,7 +36,7 @@ Reduction JSTypeFeedbackLowering::Reduce(Node* node) {
 Reduction JSTypeFeedbackLowering::ReduceJSLoadNamed(Node* node) {
   DCHECK_EQ(IrOpcode::kJSLoadNamed, node->opcode());
   Node* receiver = NodeProperties::GetValueInput(node, 0);
-  Type* receiver_type = NodeProperties::GetBounds(receiver).upper;
+  Type* receiver_type = NodeProperties::GetType(receiver);
   Node* frame_state = NodeProperties::GetFrameStateInput(node, 1);
   Node* effect = NodeProperties::GetEffectInput(node);
   Node* control = NodeProperties::GetControlInput(node);