Migrated several tests from blink to V8 repository.

test/webkit/dfg-dead-min-one-arg.js

Index: test/webkit/dfg-dead-min-one-arg.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-dead-min-one-arg.js
similarity index 75%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-dead-min-one-arg.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..48293be9d8563b7293b3b1975b0ef6afbd506f24 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-dead-min-one-arg.js
@@ -22,10 +22,26 @@
 // 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 dummy use of Math.min(a) at least speculates that its argument is indeed a number."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function foo(a) {
+    return Math.min(a.f);
+}
 
+var x = {f:42};
+var ok = null;
+var expected = 42;
+var empty = "";
+
+for (var i = 0; i < 200; ++i) {
+    if (i == 150) {
+        x = {f:{valueOf:function(){ ok = i; return 37; }}};
+        expected = 37;
+    }
+    var result = eval(empty + "foo(x)");
+    if (i >= 150)
+        shouldBe("ok", "" + i);
+    shouldBe("result", "" + expected);
+}