[turbofan] Typer changes to avoid Type representation dimension

src/compiler/memory-optimizer.cc

 // Copyright 2016 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/memory-optimizer.h"
 
 #include "src/compiler/js-graph.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
@@ skipping 264 matching lines @@
         CallDescriptor* descriptor =
             Linkage::GetAllocateCallDescriptor(graph()->zone());
         allocate_operator_.set(common()->Call(descriptor));
       }
       vfalse = efalse = graph()->NewNode(allocate_operator_.get(), target, size,
                                          efalse, if_false);
     }
 
     control = graph()->NewNode(common()->Merge(2), if_true, if_false);
     effect = graph()->NewNode(common()->EffectPhi(2), etrue, efalse, control);
-    value = graph()->NewNode(common()->Phi(MachineRepresentation::kTagged, 2),
-                             vtrue, vfalse, control);
+    value = graph()->NewNode(
+        common()->Phi(MachineRepresentation::kTaggedPointer, 2), vtrue, vfalse,
+        control);
 
     // Create an unfoldable allocation group.
     AllocationGroup* group =
         new (zone()) AllocationGroup(value, pretenure, zone());
     state = AllocationState::Closed(group, zone());
   }
 
   // Replace all effect uses of {node} with the {effect}, enqueue the
   // effect uses for further processing, and replace all value uses of
   // {node} with the {value}.
@@ skipping 197 matching lines @@
   return jsgraph()->common();
 }
 
 MachineOperatorBuilder* MemoryOptimizer::machine() const {
   return jsgraph()->machine();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8