[turbofan] Turn common Guard operator into simplified TypeGuard.

src/compiler/load-elimination.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/load-elimination.h"
 
-#include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/types.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 LoadElimination::~LoadElimination() {}
@@ skipping 32 matching lines @@
             Type* stored_value_type = NodeProperties::GetType(value);
             Type* load_type = NodeProperties::GetType(node);
             // Make sure the replacement's type is a subtype of the node's
             // type. Otherwise we could confuse optimizations that were
             // based on the original type.
             if (stored_value_type->Is(load_type)) {
               ReplaceWithValue(node, value);
               return Replace(value);
             } else {
               Node* renamed = graph()->NewNode(
-                  common()->Guard(Type::Intersect(stored_value_type, load_type,
-                                                  graph()->zone())),
+                  simplified()->TypeGuard(Type::Intersect(
+                      stored_value_type, load_type, graph()->zone())),
                   value, NodeProperties::GetControlInput(node));
               ReplaceWithValue(node, renamed);
               return Replace(renamed);
             }
           }
           // TODO(turbofan): Alias analysis to the rescue?
           return NoChange();
         }
         break;
       }
@@ skipping 24 matching lines @@
       }
     }
   }
   UNREACHABLE();
   return NoChange();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8