Fix handling Function.apply for non-array arguments.

test/mjsunit/apply.js

Index: test/mjsunit/apply.js
diff --git a/test/mjsunit/apply.js b/test/mjsunit/apply.js
index c166110df062ea5f5a56d159b1567e056a6821b6..413ee937c6638cc7d30e2bf75e755a3a89a27d2a 100644
--- a/test/mjsunit/apply.js
+++ b/test/mjsunit/apply.js
@@ -190,3 +190,10 @@ assertEquals("morseper",
     "moreseper-prime");
 
 delete(Array.prototype["1"]);
+
+// Check correct handling of non-array argument lists.
+assertSame(this, f0.apply(this, {}), "non-array-1");
+assertSame(this, f0.apply(this, { length:1 }), "non-array-2");
+assertEquals(void 0, f1.apply(this, { length:1 }), "non-array-3");
+assertEquals(void 0, f1.apply(this, { 0:"foo" }), "non-array-4");
+assertEquals("foo", f1.apply(this, { length:1, 0:"foo" }), "non-array-5");