Fix libstdc++ filesystem tests

Some recently added libstdc++ filesystem tests are missing a
dg-require-filesystem-ts.

Committed as obvious.

    libstdc++/testsuite/
	* 27_io/filesystem/operations/all.cc: Add dg-require-filesystem-ts.
	* 27_io/filesystem/operations/resize_file.cc: Likewise.
	* 27_io/filesystem/path/generation/normal2.cc: Likewise.

From-SVN: r268989

libstdc++-v3/ChangeLog

+2019-02-18  Wilco Dijkstra  <wdijkstr@arm.com>
+
+	* 27_io/filesystem/operations/all.cc: Add dg-require-filesystem-ts.
+	* 27_io/filesystem/operations/resize_file.cc: Likewise.
+	* 27_io/filesystem/path/generation/normal2.cc: Likewise.
+
 2019-02-14  Jonathan Wakely  <jwakely@redhat.com>
 
 	* doc/xml/manual/status_cxx2020.xml: Update P0887R1 status.

libstdc++-v3/testsuite/27_io/filesystem/operations/all.cc

-// { dg-options "-std=gnu++17" }
-// { dg-do run { target c++17 } }
+// { dg-options "-std=gnu++17 -fno-inline" }
+// { dg-do link { target c++17 } }
+// { dg-require-filesystem-ts "" }
 
 // Copyright (C) 2019 Free Software Foundation, Inc.
 //
@@ -18,9 +19,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17 -fno-inline" }
-// { dg-do link { target c++17 } }
-
 // C++17 30.10.15 Filesystem operation functions [fs.op.funcs]
 
 #include <filesystem>

libstdc++-v3/testsuite/27_io/filesystem/operations/resize_file.cc

@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
 
 // C++17 30.10.15.33 Resize file [fs.op.resize_file]
 

libstdc++-v3/testsuite/27_io/filesystem/path/generation/normal2.cc

@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
 
 #undef _GLIBCXX_USE_CXX11_ABI
 #define _GLIBCXX_USE_CXX11_ABI 0