Merged r17432, r17526, r17545, r17620, r17747 into 3.21 branch.

test/mjsunit/regress/regress-2984.js

Index: test/mjsunit/regress/regress-2984.js
diff --git a/test/intl/break-iterator/wellformed-unsupported-locale.js b/test/mjsunit/regress/regress-2984.js
similarity index 84%
copy from test/intl/break-iterator/wellformed-unsupported-locale.js
copy to test/mjsunit/regress/regress-2984.js
index 5ac8fbcd41583f0b36df0b54bd8cae47331f6097..de7895db0fae28a523166ee1c769857f6fe26eb2 100644
--- a/test/intl/break-iterator/wellformed-unsupported-locale.js
+++ b/test/mjsunit/regress/regress-2984.js
@@ -25,8 +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.
 
-// Passing a well formed but unsupported locale falls back to default.
+assertEquals("\u0178", "\xff".toUpperCase());
+assertEquals("abcdefghijklmn\xffopq",
+             ("ABCDEFGHIJKL" + "MN\u0178OPQ").toLowerCase());
+assertEquals("\xff", "\u0178".toLowerCase());
+assertEquals("ABCDEFGHIJKLMN\u0178OPQ",
+             ("abcdefghijk" + "lmn\xffopq").toUpperCase());
 
-var iterator = Intl.v8BreakIterator(['xx']);
-
-assertEquals(iterator.resolvedOptions().locale, %GetDefaultICULocale());