Check exception specification with __cplusplus.

To allow the compilation with gcc, we can't use the
__has_feature(cxx_noexcept) to detect the default destructor
exception specification, which is noexcept(true) by default
in C++11.  We should use __cplusplus >= 201103L instead.



git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@208465 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/test_vector1.cpp b/test/test_vector1.cpp
index 29d39db..b8bf45c 100644
--- a/test/test_vector1.cpp
+++ b/test/test_vector1.cpp
@@ -49,7 +49,7 @@
 void throw_construct ( void *p ) { if ( gConstructorCounter   == gConstructorThrowTarget ) throw 1; ++gConstructorCounter; }
 void throw_destruct  ( void *p ) { if ( ++gDestructorCounter  == gDestructorThrowTarget  ) throw 2; }
 
-#if __has_feature(cxx_noexcept)
+#if __cplusplus >= 201103L
 #   define CAN_THROW noexcept(false)
 #else
 #   define CAN_THROW