Protect nested-exceptions tests under no-exceptions

Differential Revision: https://reviews.llvm.org/D26458



git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@286813 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/language.support/support.exception/except.nested/assign.pass.cpp

@@ -7,7 +7,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-// XFAIL: libcpp-no-exceptions
 // <exception>
 
 // class nested_exception;
@@ -17,6 +16,8 @@
 #include <exception>
 #include <cassert>
 
+#include "test_macros.h"
+
 class A
 {
     int data_;
@@ -34,6 +35,7 @@ int main()
         e = e0;
         assert(e.nested_ptr() == nullptr);
     }
+#ifndef TEST_HAS_NO_EXCEPTIONS
     {
         try
         {
@@ -57,4 +59,5 @@ int main()
             }
         }
     }
+#endif
 }