[libcxx] [test] Update for C++17 feature removals.

test/std/containers/Emplaceable.h
test/std/containers/NotConstructible.h
test/support/counting_predicates.hpp
Replace unary_function/binary_function inheritance with typedefs.

test/std/depr/depr.function.objects/depr.base/binary_function.pass.cpp
test/std/depr/depr.function.objects/depr.base/unary_function.pass.cpp
test/std/utilities/function.objects/func.require/binary_function.pass.cpp
test/std/utilities/function.objects/func.require/unary_function.pass.cpp
Mark these tests as requiring 98/03/11/14 because 17 removed unary_function/binary_function.

test/std/thread/futures/futures.task/futures.task.members/ctor_func_alloc.pass.cpp
test/std/thread/futures/futures.task/futures.task.nonmembers/uses_allocator.pass.cpp
Mark these tests as requiring 11/14 because 17 removed packaged_task allocator support.

test/std/utilities/function.objects/func.wrap/func.wrap.func/derive_from.pass.cpp
This test doesn't need to be skipped in C++17 mode. Only the construction of
std::function from an allocator needs to be skipped in C++17 mode.

test/std/utilities/function.objects/refwrap/refwrap.access/conversion.pass.cpp
test/std/utilities/function.objects/refwrap/refwrap.assign/copy_assign.pass.cpp
test/std/utilities/function.objects/refwrap/refwrap.const/copy_ctor.pass.cpp
test/std/utilities/function.objects/refwrap/refwrap.const/type_ctor.pass.cpp
When testing these reference_wrapper features, unary_function inheritance is totally irrelevant.

test/std/utilities/function.objects/refwrap/weak_result.pass.cpp
Define and use my_unary_function/my_binary_function to test the weak result type machinery
(which is still present in C++17, although deprecated).

test/support/msvc_stdlib_force_include.hpp
Now we can test C++17 strictly, without enabling removed features.

Fixes D36503.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@311705 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/utilities/function.objects/func.require/binary_function.pass.cpp

@@ -8,6 +8,8 @@
 //===----------------------------------------------------------------------===//
 
 // <functional>
+// REQUIRES: c++98 || c++03 || c++11 || c++14
+// binary_function was removed in C++17
 
 // binary_function
 

test/std/utilities/function.objects/func.require/unary_function.pass.cpp

@@ -8,6 +8,8 @@
 //===----------------------------------------------------------------------===//
 
 // <functional>
+// REQUIRES: c++98 || c++03 || c++11 || c++14
+// unary_function was removed in C++17
 
 // unary_function
 

test/std/utilities/function.objects/func.wrap/func.wrap.func/derive_from.pass.cpp

@@ -8,7 +8,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03
-// REQUIRES: c++11 || c++14
 
 // <functional>
 
@@ -25,5 +24,7 @@ struct S : public std::function<void()> { using function::function; };
 int main() {
     S s( [](){} );
     S f1( s );
+#if TEST_STD_VER <= 14
     S f2(std::allocator_arg, std::allocator<int>{}, s);
+#endif
 }

test/std/utilities/function.objects/refwrap/refwrap.access/conversion.pass.cpp

@@ -17,7 +17,6 @@
 #include <cassert>
 
 class functor1
-    : public std::unary_function<int, char>
 {
 };
 

test/std/utilities/function.objects/refwrap/refwrap.assign/copy_assign.pass.cpp

@@ -17,7 +17,6 @@
 #include <cassert>
 
 class functor1
-    : public std::unary_function<int, char>
 {
 };
 

test/std/utilities/function.objects/refwrap/refwrap.const/copy_ctor.pass.cpp

@@ -17,7 +17,6 @@
 #include <cassert>
 
 class functor1
-    : public std::unary_function<int, char>
 {
 };
 

test/std/utilities/function.objects/refwrap/refwrap.const/type_ctor.pass.cpp

@@ -17,7 +17,6 @@
 #include <cassert>
 
 class functor1
-    : public std::unary_function<int, char>
 {
 };
 

test/std/utilities/function.objects/refwrap/weak_result.pass.cpp

@@ -16,27 +16,42 @@
 #include <functional>
 #include <type_traits>
 
+template <class Arg, class Result>
+struct my_unary_function
+{ // std::unary_function was removed in C++17
+    typedef Arg argument_type;
+    typedef Result result_type;
+};
+
+template <class Arg1, class Arg2, class Result>
+struct my_binary_function
+{ // std::binary_function was removed in C++17
+    typedef Arg1 first_argument_type;
+    typedef Arg2 second_argument_type;
+    typedef Result result_type;
+};
+
 class functor1
-    : public std::unary_function<int, char>
+    : public my_unary_function<int, char>
 {
 };
 
 class functor2
-    : public std::binary_function<char, int, double>
+    : public my_binary_function<char, int, double>
 {
 };
 
 class functor3
-    : public std::unary_function<char, int>,
-      public std::binary_function<char, int, double>
+    : public my_unary_function<char, int>,
+      public my_binary_function<char, int, double>
 {
 public:
     typedef float result_type;
 };
 
 class functor4
-    : public std::unary_function<char, int>,
-      public std::binary_function<char, int, double>
+    : public my_unary_function<char, int>,
+      public my_binary_function<char, int, double>
 {
 public:
 };