[committed] libstdc++: Skip tests that fail for the versioned namespace

[Jonathan Wakely via Gcc-patches]

Tested x86_64-linux, pushed to trunk.

-- >8 --

Most tests for the contents of header synopses need to be supressed for
the versioned namespace build, because redeclaring the entities in std
fails when they were originally declared in std::__8.

I added these tests recently without the suppression, so they fail.

libstdc++-v3/ChangeLog:

        * testsuite/20_util/expected/synopsis.cc: Skip for versioned
        namespace.
        * testsuite/27_io/headers/iosfwd/synopsis.cc: Likewise.
---
 libstdc++-v3/testsuite/20_util/expected/synopsis.cc     | 1 +
 libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc | 1 +
 2 files changed, 2 insertions(+)

diff --git a/libstdc++-v3/testsuite/20_util/expected/synopsis.cc 
b/libstdc++-v3/testsuite/20_util/expected/synopsis.cc
index 304bae93ebd..3a7eef3eee4 100644
--- a/libstdc++-v3/testsuite/20_util/expected/synopsis.cc
+++ b/libstdc++-v3/testsuite/20_util/expected/synopsis.cc
@@ -1,5 +1,6 @@
 // { dg-options "-std=gnu++23" }
 // { dg-do compile { target c++23 } }
+// { dg-require-normal-namespace "" }
 
 #include <expected>
 
diff --git a/libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc 
b/libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc
index 467d63609bd..b6d3fa7a719 100644
--- a/libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc
+++ b/libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc
@@ -1,4 +1,5 @@
 // { dg-do compile }
+// { dg-require-normal-namespace "" }
 
 #include <iosfwd>
 
-- 
2.34.3