[es6] Partially implement Reflect.getPrototypeOf.

test/mjsunit/harmony/reflect.js

Index: test/mjsunit/harmony/reflect.js
diff --git a/test/mjsunit/harmony/reflect.js b/test/mjsunit/harmony/reflect.js
index 613e898286c8adafa08fa5c9b8ef376bf8d51f1c..84709ba0cf8ed506e97a02376c235d2ff0954790 100644
--- a/test/mjsunit/harmony/reflect.js
+++ b/test/mjsunit/harmony/reflect.js
@@ -231,6 +231,26 @@ function prepare(tgt) {
 
 
 ////////////////////////////////////////////////////////////////////////////////
+// Reflect.getPrototypeOf
+
+
+(function testReflectGetPrototypeOfArity() {
+  assertEquals(1, Reflect.getPrototypeOf.length);
+})();
+
+
+(function testReflectDeletePropertyOnNonObject() {
+  assertThrows(function() { Reflect.getPrototypeOf(); }, TypeError);
+  assertThrows(function() { Reflect.getPrototypeOf(42); }, TypeError);
+  assertThrows(function() { Reflect.getPrototypeOf(null); }, TypeError);
+})();
+
+
+// See reflect-get-prototype-of.js for further tests.
+
+
+
+////////////////////////////////////////////////////////////////////////////////
 // Reflect.isExtensible