[turbofan] Introduce MachineRepresentation to PropertyAccessInfo.

src/machine-type.h

 // 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.
 
 #ifndef V8_MACHINE_TYPE_H_
 #define V8_MACHINE_TYPE_H_
 
 #include <iosfwd>
 
 #include "src/base/bits.h"
@@ skipping 151 matching lines @@
   static MachineType RepSimd128() {
     return MachineType(MachineRepresentation::kSimd128, MachineSemantic::kNone);
   }
   static MachineType RepTagged() {
     return MachineType(MachineRepresentation::kTagged, MachineSemantic::kNone);
   }
   static MachineType RepBit() {
     return MachineType(MachineRepresentation::kBit, MachineSemantic::kNone);
   }
 
-  static MachineType TypeForRepresentation(MachineRepresentation& rep,
+  static MachineType TypeForRepresentation(const MachineRepresentation& rep,
                                            bool isSigned = true) {
     switch (rep) {
       case MachineRepresentation::kNone:
         return MachineType::None();
       case MachineRepresentation::kBit:
         return MachineType::Bool();
       case MachineRepresentation::kWord8:
         return isSigned ? MachineType::Int8() : MachineType::Uint8();
       case MachineRepresentation::kWord16:
         return isSigned ? MachineType::Int16() : MachineType::Uint16();
       case MachineRepresentation::kWord32:
         return isSigned ? MachineType::Int32() : MachineType::Uint32();
       case MachineRepresentation::kWord64:
         return isSigned ? MachineType::Int64() : MachineType::Uint64();
       case MachineRepresentation::kFloat32:
         return MachineType::Float32();
       case MachineRepresentation::kFloat64:
         return MachineType::Float64();
       case MachineRepresentation::kSimd128:
         return MachineType::Simd128();
       case MachineRepresentation::kTagged:
         return MachineType::AnyTagged();
+      case MachineRepresentation::kTaggedSigned:
+        return MachineType::TaggedSigned();
+      case MachineRepresentation::kTaggedPointer:
+        return MachineType::TaggedPointer();
       default:
         UNREACHABLE();
         return MachineType::None();
     }
   }
 
  private:
   MachineRepresentation representation_;
   MachineSemantic semantic_;
 };
@@ skipping 52 matching lines @@
   UNREACHABLE();
   return -1;
 }
 
 typedef Signature<MachineType> MachineSignature;
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_MACHINE_TYPE_H_