[libcxx] [test] Fix Clang -Wunused-local-typedef, part 3/3.

test/std/strings/string.classes/typedefs.pass.cpp
Actually test what basic_string's typedefs stand for.

test/std/utilities/meta/meta.trans/meta.trans.other/result_of11.pass.cpp
NotDerived and ND were completely unused.

test/std/utilities/utility/pairs/pairs.pair/default.pass.cpp
P2 was mistakenly not being used. Yes, that's
right: -Wunused-local-typedef CAUGHT A MISTAKE! AMAZING!

Fixes D29137.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@294156 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 1 insertions, 3 deletions

diff --git a/test/std/utilities/meta/meta.trans/meta.trans.other/result_of11.pass.cpp b/test/std/utilities/meta/meta.trans/meta.trans.other/result_of11.pass.cpp
index 8cb5853bb..eac4e4a08 100644
--- a/test/std/utilities/meta/meta.trans/meta.trans.other/result_of11.pass.cpp
+++ b/test/std/utilities/meta/meta.trans/meta.trans.other/result_of11.pass.cpp
@@ -26,7 +26,6 @@ struct wat
 
 struct F {};
 struct FD : public F {};
-struct NotDerived {};
 
 template <class T, class U>
 void test_result_of_imp()
@@ -43,7 +42,6 @@ void test_result_of_imp()
 
 int main()
 {
-    typedef NotDerived ND;
     {
     typedef char F::*PMD;
     test_result_of_imp<PMD(F                &), char                &>();
diff --git a/test/std/utilities/utility/pairs/pairs.pair/default.pass.cpp b/test/std/utilities/utility/pairs/pairs.pair/default.pass.cpp
index c936daf25..af91abe74 100644
--- a/test/std/utilities/utility/pairs/pairs.pair/default.pass.cpp
+++ b/test/std/utilities/utility/pairs/pairs.pair/default.pass.cpp
@@ -49,7 +49,7 @@ int main()
         using P = std::pair<int, NoDefault>;
         static_assert(!std::is_default_constructible<P>::value, "");
         using P2 = std::pair<NoDefault, int>;
-        static_assert(!std::is_default_constructible<P>::value, "");
+        static_assert(!std::is_default_constructible<P2>::value, "");
     }
 #endif
 }