test: Mark 316 tests as XFAIL to rename to xfail.pass.cpp.

test/language.support/support.exception/propagation/exception_ptr.xfail.pass.cpp

@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <exception>
+
+// typedef unspecified exception_ptr;
+
+// exception_ptr shall satisfy the requirements of NullablePointer.
+
+#include <exception>
+#include <cassert>
+
+int main()
+{
+    std::exception_ptr p;
+    assert(p == nullptr);
+    std::exception_ptr p2 = p;
+    assert(nullptr == p);
+    assert(!p);
+    assert(p2 == p);
+    p2 = p;
+    assert(p2 == p);
+    assert(p2 == nullptr);
+    std::exception_ptr p3 = nullptr;
+    assert(p3 == nullptr);
+    p3 = nullptr;
+    assert(p3 == nullptr);
+}