Migrated several tests from blink to V8 repository.

test/webkit/gmail-re-re.js

Index: test/webkit/gmail-re-re.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/gmail-re-re.js
similarity index 57%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/gmail-re-re.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..75ba4ba66b01fa3ce6b544a6b15730e1aa5eaff8 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/gmail-re-re.js
@@ -21,11 +21,39 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-description(
-"Tests the behavior of Array.prototype.concat while the array is having a bad time due to one of the elements we are concatenating."
+description(
+"Bug 7445, bug 7253: Handle Unicode escapes in regexps."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+var I3=/^\s*(fwd|re|aw|antw|antwort|wg|sv|ang|odp|betreff|betr|transf|reenv\.|reenv|in|res|resp|resp\.|enc|\u8f6c\u53d1|\u56DE\u590D|\u041F\u0435\u0440\u0435\u0441\u043B|\u041E\u0442\u0432\u0435\u0442):\s*(.*)$/i;
 
+// Other RegExs from Gmail source
+var Ci=/\s+/g;
+var BC=/^ /;
+var BG=/ $/;
 
+// Strips leading Re or similar (from Gmail source)
+function cy(a) {
+    //var b = I3.exec(a);
+    var b = I3.exec(a);
+
+    if (b) {
+        a = b[2];
+    }
+
+    return Gn(a);
+}
+
+// This function replaces consecutive whitespace with a single space
+// then removes a leading and trailing space if they exist. (From Gmail)
+function Gn(a) {
+    return a.replace(Ci, " ").replace(BC, "").replace(BG, "");
+}
+
+shouldBe('cy("Re: Hello")', '"Hello"');
+shouldBe('cy("Ответ: Hello")', '"Hello"');
+
+// ---------------------------------------------------------------
+
+var regex = /^([^#<\u2264]+)([#<\u2264])(.*)$/;
+shouldBe('regex.exec("24#Midnight").toString()', '"24#Midnight,24,#,Midnight"');