More string fixes for noexcept cases. Apparently I didn't get them all in r258281.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@258291 91177308-0d34-0410-b5e6-96231b3b80d8

test/libcxx/strings/iterators.exceptions.pass.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-
+// XFAIL: libcpp-no-exceptions
 // <iterator>
 
 // __libcpp_is_trivial_iterator<Tp>

test/std/strings/basic.string/string.modifiers/string_append/iterator.pass.cpp

@@ -27,6 +27,7 @@ test(S s, It first, It last, S expected)
     assert(s == expected);
 }
 
+#ifndef TEST_HAS_NO_EXCEPTIONS
 template <class S, class It>
 void
 test_exceptions(S s, It first, It last)
@@ -40,6 +41,7 @@ test_exceptions(S s, It first, It last)
     assert(s.__invariants());
     assert(s == aCopy);
 }
+#endif
 
 int main()
 {

test/std/strings/basic.string/string.modifiers/string_assign/iterator.pass.cpp

@@ -27,6 +27,7 @@ test(S s, It first, It last, S expected)
     assert(s == expected);
 }
 
+#ifndef TEST_HAS_NO_EXCEPTIONS
 template <class S, class It>
 void
 test_exceptions(S s, It first, It last)
@@ -40,6 +41,7 @@ test_exceptions(S s, It first, It last)
     assert(s.__invariants());
     assert(s == aCopy);
 }
+#endif
 
 int main()
 {

test/std/strings/basic.string/string.modifiers/string_insert/iter_iter_iter.pass.cpp

@@ -33,6 +33,7 @@ test(S s, typename S::difference_type pos, It first, It last, S expected)
     assert(s == expected);
 }
 
+#ifndef TEST_HAS_NO_EXCEPTIONS
 template <class S, class It>
 void
 test_exceptions(S s, typename S::difference_type pos, It first, It last)
@@ -47,6 +48,7 @@ test_exceptions(S s, typename S::difference_type pos, It first, It last)
     assert(s.__invariants());
     assert(s == aCopy);
 }
+#endif
 
 int main()
 {

test/std/strings/basic.string/string.modifiers/string_replace/iter_iter_iter_iter.pass.cpp

@@ -35,6 +35,7 @@ test(S s, typename S::size_type pos1, typename S::size_type n1, It f, It l, S ex
     assert(s.size() == old_size - xlen + rlen);
 }
 
+#ifndef TEST_HAS_NO_EXCEPTIONS
 template <class S, class It>
 void
 test_exceptions(S s, typename S::size_type pos1, typename S::size_type n1, It f, It l)
@@ -50,6 +51,7 @@ test_exceptions(S s, typename S::size_type pos1, typename S::size_type n1, It f,
     assert(s.__invariants());
     assert(s == aCopy);
 }
+#endif
 
 const char* str = "12345678901234567890";