Merge branch 'cleanup/deprecate-to-true-false-type' into 'master'

Deprecate Dune::Std::to_true_type and to_false_type

See merge request !971 (merged)

(cherry picked from commit 1512e529)

f54750f5 [typetraits] Derive AlwaysTrue/False from std::true/false_type feaf3833 [std/typetraits] Deprecate Dune::Std::to_false/true_type. Use Dune::AlwaysFalse/True

dune/common/simd/test/looptest.cc.in

@@ -10,7 +10,7 @@
 #include <dune/common/simd/loop.hh>
 #include <dune/common/simd/test.hh>
 #include <dune/common/simd/test/looptest.hh>
-#include <dune/common/std/type_traits.hh>
+#include <dune/common/typetraits.hh>
 
 template<class> struct RebindAccept : std::false_type {};
 #cmake @template@
@@ -32,11 +32,11 @@ int main()
 
 #cmake @template@
   test.check<Dune::LoopSIMD<@SCALAR@, 5>,
-             Rebinds, Dune::Std::to_false_type, RebindAccept>();
+             Rebinds, Dune::AlwaysFalse, RebindAccept>();
   test.check<Dune::LoopSIMD<@SCALAR@, 5, 64>,
-             Rebinds, Dune::Std::to_false_type, RebindAccept>();
+             Rebinds, Dune::AlwaysFalse, RebindAccept>();
   test.check<Dune::LoopSIMD<Dune::LoopSIMD<@SCALAR@, 2>, 5>,
-             Rebinds, Dune::Std::to_false_type, RebindAccept>();
+             Rebinds, Dune::AlwaysFalse, RebindAccept>();
 #cmake @endtemplate@
 
   return test.good() ? EXIT_SUCCESS : EXIT_FAILURE;