Fix y-umlaut to uppercase.

test/mjsunit/regress/regress-2984.js

Index: test/mjsunit/regress/regress-2984.js
diff --git a/test/cctest/test-cpu-ia32.cc b/test/mjsunit/regress/regress-2984.js
similarity index 84%
copy from test/cctest/test-cpu-ia32.cc
copy to test/mjsunit/regress/regress-2984.js
index 245450bf92b595e417a53edff09a5849d74dd135..de7895db0fae28a523166ee1c769857f6fe26eb2 100644
--- a/test/cctest/test-cpu-ia32.cc
+++ b/test/mjsunit/regress/regress-2984.js
@@ -25,16 +25,10 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#include "v8.h"
+assertEquals("\u0178", "\xff".toUpperCase());
+assertEquals("abcdefghijklmn\xffopq",
+             ("ABCDEFGHIJKL" + "MN\u0178OPQ").toLowerCase());
+assertEquals("\xff", "\u0178".toLowerCase());
+assertEquals("ABCDEFGHIJKLMN\u0178OPQ",
+             ("abcdefghijk" + "lmn\xffopq").toUpperCase());
 
-#include "cctest.h"
-#include "cpu.h"
-
-using namespace v8::internal;
-
-
-TEST(RequiredFeaturesX64) {
-  // Test for the features required by every x86 CPU in compat/legacy mode.
-  CPU cpu;
-  CHECK(cpu.has_sahf());
-}