More Clang 3.4 "(anonymous namespace)" fixes

Change-Id: I7cb43f915565dadd611b90ee30373e472f97efb5
Reviewed-on: https://gerrit.libreoffice.org/26748
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Tested-by: Stephan Bergmann <sbergman@redhat.com>

compilerplugins/clang/weakobject.cxx

@@ -7,8 +7,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
+#include "check.hxx"
 #include "plugin.hxx"
-#include "typecheck.hxx"
 
 /* OWeakObject::release() disposes weak references.  If that isn't done
  * because a sub-class improperly overrides release() then