Migrated several tests from blink to V8 repository.

test/webkit/parser-xml-close-comment.js

Index: test/webkit/parser-xml-close-comment.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/parser-xml-close-comment.js
similarity index 81%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/parser-xml-close-comment.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..d3f458f6594d4847ec8a9f2ab6261a2efdb58137 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/parser-xml-close-comment.js
@@ -21,11 +21,13 @@
 // (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."
-);
-
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+description("Test to ensure correct handling of --> as a single line comment when at the beginning of a line");
 
+shouldThrow("'should be a syntax error' -->");
+shouldThrow("/**/ 1 -->");
+shouldThrow("1 /**/ -->");
+shouldThrow("1/*\n*/-->");
 
+shouldBeUndefined("-->");
+shouldBeUndefined("/**/-->");
+shouldBeUndefined("/*\n*/-->");