Migrated several tests from blink to V8 repository.

test/webkit/dfg-redundant-load-of-captured-variable-proven-constant.js

Index: test/webkit/dfg-redundant-load-of-captured-variable-proven-constant.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-redundant-load-of-captured-variable-proven-constant.js
similarity index 71%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-redundant-load-of-captured-variable-proven-constant.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..c97b9edf9a1104075f592e2706e1bb8d0567a9fa 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-redundant-load-of-captured-variable-proven-constant.js
@@ -22,10 +22,27 @@
 // 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."
+"Tests that a redundant load of a captured variable that was proven to be a constant doesn't crash the compiler."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function foo(o, p) {
+    var x = o.f;
+    if (p)
+        return function() { return x; }
+    else {
+        var a = x;
+        var b = x;
+        return [a, b];
+    }
+}
 
+var o = {f:function() { return 32; }};
 
+for (var i = 0; i < 100; ++i) {
+    var expected;
+    if (i % 2)
+        expected = "\"function () { return x; }\"";
+    else
+        expected = "\"function () { return 32; },function () { return 32; }\"";
+    shouldBe("\"\" + foo(o, i % 2)", expected);
+}