DevTools: Show internal properties in object preview in console.

LayoutTests/inspector/console/console-format-es6.html

Index: LayoutTests/inspector/console/console-format-es6.html
diff --git a/LayoutTests/inspector/console/console-format-es6.html b/LayoutTests/inspector/console/console-format-es6.html
index ed26f73318f3edc47cc6488f902a057547efdce3..290a581f90ba01172ee8bc5efa96cf05ef873936 100644
--- a/LayoutTests/inspector/console/console-format-es6.html
+++ b/LayoutTests/inspector/console/console-format-es6.html
@@ -16,13 +16,13 @@ function onload()
 {
     var smb1 = Symbol();
     var smb2 = Symbol("a");
-    var obj = new Object();
+    var obj = {};
     obj[Symbol()] = 1;
     obj[smb2] = 2;
     obj["a"] = smb1;
 
     globals = [
-        smb1, smb2, obj
+        Promise.reject(-0), smb1, smb2, obj
     ];
 
     runTest();