Minor clang-tidy cleanups

using decl 'Pointee' is unused
missing #include <utility> for 'std::move'
missing #include <memory> for 'std::unique_ptr'

PiperOrigin-RevId: 460980847
Change-Id: I5ebfca39d6b93ef396b32d1b91a5d8748d43e018

absl/utility/utility_test.cc

@@ -1,4 +1,4 @@
-// Copyright 2017 The Abseil Authors.
+// Copyright 2022 The Abseil Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -14,10 +14,12 @@
 
 #include "absl/utility/utility.h"
 
+#include <memory>
 #include <sstream>
 #include <string>
 #include <tuple>
 #include <type_traits>
+#include <utility>
 #include <vector>
 
 #include "gmock/gmock.h"
@@ -227,8 +229,7 @@ TEST(ApplyTest, NonCopyableArgument) {
 }
 
 TEST(ApplyTest, NonCopyableResult) {
-  EXPECT_THAT(absl::apply(Factory, std::make_tuple(42)),
+  EXPECT_THAT(absl::apply(Factory, std::make_tuple(42)), Pointee(42));
-              ::testing::Pointee(42));
 }
 
 TEST(ApplyTest, VoidResult) { absl::apply(NoOp, std::tuple<>()); }
@@ -373,4 +374,3 @@ TEST(MakeFromTupleTest, Pair) {
 }
 
 }  // namespace
-