assign_neg.cc: Tidy dg- directives, for C++0x testing too.

assign_neg.cc: Tidy dg- directives, for C++0x testing too.

2011-10-06  Paolo Carlini  <paolo.carlini@oracle.com>

	* testsuite/27_io/ios_base/cons/assign_neg.cc: Tidy dg- directives,
	for C++0x testing too.
	* testsuite/27_io/ios_base/cons/copy_neg.cc: Likewise.
	* testsuite/ext/pb_ds/example/hash_resize_neg.cc: Likewise.
	* testsuite/24_iterators/istreambuf_iterator/requirements/
	base_classes.cc: Adjust for C++0x testing.
	* testsuite/ext/codecvt/char-1.cc: Avoid warnings in C++0x mode.
	* testsuite/ext/codecvt/char-2.cc: Likewise.
	* testsuite/ext/codecvt/wchar_t.cc: Likewise.

From-SVN: r179616