[es6] Implement parts of the Reflect object.

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index a7754dba1a861935354ad2be18e793cb650e9f26..d2820fde853c0eaaf046a5c3ac63800f6d989c50 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1880,6 +1880,16 @@ void Genesis::InitializeGlobal_harmony_tolength() {
 }
 
 
+static void SimpleInstallFunction(
+    Handle<JSObject>& base, const char* name, Builtins::Name call, int len) {
+  Handle<JSFunction> fun =
+      InstallFunction(base, name, JS_OBJECT_TYPE, JSObject::kHeaderSize,
+                      MaybeHandle<JSObject>(), call);
+  fun->shared()->set_internal_formal_parameter_count(len);
+  fun->shared()->set_length(len);
+}
+
+
 void Genesis::InitializeGlobal_harmony_reflect() {
   if (!FLAG_harmony_reflect) return;
 
@@ -1887,11 +1897,19 @@ void Genesis::InitializeGlobal_harmony_reflect() {
       native_context()->global_object()));
   Handle<String> reflect_string =
       factory()->NewStringFromStaticChars("Reflect");
-  Handle<Object> reflect =
+  Handle<JSObject> reflect =
       factory()->NewJSObject(isolate()->object_function(), TENURED);
   JSObject::AddProperty(global, reflect_string, reflect, DONT_ENUM);
-}
 
+  SimpleInstallFunction(reflect, "deleteProperty",
+                        Builtins::kReflectDeleteProperty, 2);
+  SimpleInstallFunction(reflect, "get",
+                        Builtins::kReflectGet, 3);
+  SimpleInstallFunction(reflect, "has",
+                        Builtins::kReflectHas, 2);
+  SimpleInstallFunction(reflect, "isExtensible",
+                        Builtins::kReflectIsExtensible, 1);
+}
 
 
 void Genesis::InitializeGlobal_harmony_sharedarraybuffer() {