[turbofan] Fix lowering of typed loads/stores.

src/compiler/simplified-operator.h

Index: src/compiler/simplified-operator.h
diff --git a/src/compiler/simplified-operator.h b/src/compiler/simplified-operator.h
index b05cb205945a38e622b0371843f0bd0f1c3c1de2..92e8a7202a264be7aa19bb7ce4f61ea44a8ab138 100644
--- a/src/compiler/simplified-operator.h
+++ b/src/compiler/simplified-operator.h
@@ -38,13 +38,18 @@ std::ostream& operator<<(std::ostream&, BaseTaggedness);
 struct FieldAccess {
   BaseTaggedness base_is_tagged;  // specifies if the base pointer is tagged.
   int offset;                     // offset of the field, without tag.
-  Handle<Name> name;              // debugging only.
+  MaybeHandle<Name> name;         // debugging only.
   Type* type;                     // type of the field.
   MachineType machine_type;       // machine type of the field.
 
   int tag() const { return base_is_tagged == kTaggedBase ? kHeapObjectTag : 0; }
 };
 
+bool operator==(FieldAccess const& lhs, FieldAccess const& rhs);
+bool operator!=(FieldAccess const& lhs, FieldAccess const& rhs);
+
+std::ostream& operator<<(std::ostream&, FieldAccess const&);
+
 
 enum BoundsCheckMode { kNoBoundsCheck, kTypedArrayBoundsCheck };