Fix MSVC warning C4127 "conditional expression is constant".

Author: StephanTLavavej

libcxx/test/std/algorithms/alg.modifying.operations/alg.rotate/rotate.pass.cpp

@@ -439,7 +439,7 @@ TEST_CONSTEXPR_CXX20 bool test() {
   types::for_each(types::forward_iterator_list<int*>(), TestIter());
 
 #if TEST_STD_VER >= 11
-  if (TEST_STD_VER >= 23 || !TEST_IS_CONSTANT_EVALUATED)
+  if (TEST_STD_AT_LEAST_23_OR_RUNTIME_EVALUATED)
     types::for_each(types::forward_iterator_list<std::unique_ptr<int>*>(), TestUniquePtr());
 #endif
 

libcxx/test/std/algorithms/alg.modifying.operations/alg.swap/swap_ranges.pass.cpp

@@ -144,7 +144,7 @@ TEST_CONSTEXPR_CXX20 bool test() {
 
 #if TEST_STD_VER >= 11
   // We can't test unique_ptr in constant evaluation before C++23 as it's constexpr only since C++23.
-  if (TEST_STD_VER >= 23 || !TEST_IS_CONSTANT_EVALUATED)
+  if (TEST_STD_AT_LEAST_23_OR_RUNTIME_EVALUATED)
     types::for_each(types::forward_iterator_list<std::unique_ptr<int>*>(), TestUniquePtr());
 #endif
 

libcxx/test/std/utilities/utility/utility.swap/swap_array.pass.cpp

@@ -137,7 +137,7 @@ TEST_CONSTEXPR_CXX20 bool test() {
     static_assert(noexcept(std::swap(ma, ma)), "");
   }
 
-  if (TEST_STD_VER >= 23 || !TEST_IS_CONSTANT_EVALUATED)
+  if (TEST_STD_AT_LEAST_23_OR_RUNTIME_EVALUATED)
     test_unique_ptr();
 #endif