Migrated several tests from blink to V8 repository.

test/webkit/regexp-compile.js

Index: test/webkit/regexp-compile.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/regexp-compile.js
similarity index 55%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/regexp-compile.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..b06ac22e192d8a029daf12128c2ac56d5f5aad1b 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/regexp-compile.js
@@ -22,10 +22,53 @@
 // 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."
+'Test RegExp.compile method.'
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+re = new RegExp("a", "i");
+shouldBe("re.toString()", "'/a/i'");
 
+re.compile("a");
+shouldBe("re.multiline", "false");
+shouldBe("re.ignoreCase", "false");
+shouldBe("re.global", "false");
+shouldBe("re.test('A')", "false");
+shouldBe("re.toString()", "'/a/'");
 
+re.compile("b", "g");
+shouldBe("re.toString()", "'/b/g'");
+
+re.compile(new RegExp("c"));
+shouldBe("re.toString()", "'/c/'");
+
+re.compile(new RegExp("c", "i"));
+shouldBe("re.ignoreCase", "true");
+shouldBe("re.test('C')", "true");
+shouldBe("re.toString()", "'/c/i'");
+
+shouldThrow("re.compile(new RegExp('c'), 'i');");
+
+// It's OK to supply a second argument, as long as the argument is "undefined".
+re.compile(re, undefined);
+shouldBe("re.toString()", "'/c/i'");
+
+shouldThrow("re.compile(new RegExp('+'));");
+
+re.compile(undefined);
+shouldBe("re.toString()", "'/undefined/'");
+
+re.compile(null);
+shouldBe("re.toString()", "'/null/'");
+
+re.compile();
+shouldBe("re.toString()", "'/(?:)/'");
+
+re.compile("z", undefined);
+shouldBe("re.toString()", "'/z/'");
+
+// Compiling should reset lastIndex.
+re.lastIndex = 100;
+re.compile(/a/g);
+shouldBe("re.lastIndex", "0");
+re.exec("aaa");
+shouldBe("re.lastIndex", "1");