Fix warning in test - missing exception specifier for overload of operator new

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@212723 91177308-0d34-0410-b5e6-96231b3b80d8

test/localization/locale.categories/category.ctype/facet.ctype.special/facet.ctype.char.dtor/dtor.pass.cpp

@@ -19,7 +19,7 @@
 
 unsigned delete_called = 0;
 
-void* operator new[](size_t sz)
+void* operator new[](size_t sz) throw(std::bad_alloc)
 {
     return operator new(sz);
 }