Migrate more tests from blink repository.

test/webkit/fast/js/regexp-non-greedy-parentheses.js

Index: test/webkit/fast/js/regexp-non-greedy-parentheses.js
diff --git a/test/webkit/array-iterate-backwards.js b/test/webkit/fast/js/regexp-non-greedy-parentheses.js
similarity index 69%
copy from test/webkit/array-iterate-backwards.js
copy to test/webkit/fast/js/regexp-non-greedy-parentheses.js
index 301cbd5290c9dfafcf44c22b351483aa219212f3..48f19f3a0d8f37c07cc5eca6796aee6fe02475b4 100644
--- a/test/webkit/array-iterate-backwards.js
+++ b/test/webkit/fast/js/regexp-non-greedy-parentheses.js
@@ -22,34 +22,14 @@
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 description(
-"This test checks that iterating a large array backwards works correctly."
+'Test for regression against <a href="https://bugs.webkit.org/show_bug.cgi?id=39289">Wrong result in case of non-iterative matching of subpatterns in non-greedy cases in YARR Interpreter</a>'
 );
 
-var bytes = new Array();
-
-function prepare(nbytes) {
-    var i = nbytes - 1;
-    while (i >= 0) {
-        bytes[i] = new Number(i);
-        i -= 1;
-    }
-}
-
-function verify(nbytes) {
-    var i = nbytes - 1;
-    while (i >= 0) {
-        if (bytes[i] != i)
-            return false;
-        i -= 1;
-    }
-    return true;
-}
-
-prepare(32768);
-shouldBeTrue('verify(32768)');
-
-prepare(65536);
-shouldBeTrue('verify(65536)');
-
-prepare(120000);
-shouldBeTrue('verify(120000)');
+shouldBe('"a".match(/(a)??/)', '["", undefined]');
+shouldBe('"b".match(/(a)??/)', '["", undefined]');
+shouldBe('"ab".match(/(a)??b/)', '["ab", "a"]');
+shouldBe('"aaab".match(/(a+)??b/)', '["aaab", "aaa"]');
+shouldBe('"abbc".match(/(a)??(b+)??c/)', '["abbc", "a", "bb"]');
+shouldBe('"ac".match(/(a)??(b)??c/)', '["ac", "a", undefined]');
+shouldBe('"abc".match(/(a(b)??)??c/)', '["abc", "ab", "b"]');
+shouldBe('"ac".match(/(a(b)??)??c/)', '["ac", "a", undefined]');