[Turbofan]: Use new MachineTypes in access-builder.

src/compiler/linkage.cc

Index: src/compiler/linkage.cc
diff --git a/src/compiler/linkage.cc b/src/compiler/linkage.cc
index e0dde3f0f6497ae935fc5c41482a810fb24941d9..a086d32b2fa321890dd55a2221ecb487d78660a5 100644
--- a/src/compiler/linkage.cc
+++ b/src/compiler/linkage.cc
@@ -37,9 +37,11 @@ MachineType reptyp(Representation representation) {
     case Representation::kInteger32:
       return MachineType::Int32();
     case Representation::kSmi:
+      return MachineType::TaggedSigned();
     case Representation::kTagged:
-    case Representation::kHeapObject:
       return MachineType::AnyTagged();
+    case Representation::kHeapObject:
+      return MachineType::TaggedPointer();
     case Representation::kDouble:
       return MachineType::Float64();
     case Representation::kExternal: