This fixes bug with trying to get properties of non-object (symbol).

LayoutTests/inspector/console/console-dir-expected.txt

 CONSOLE MESSAGE: line 9: test1,test2
 CONSOLE MESSAGE: line 10: [object NodeList]
 CONSOLE MESSAGE: line 11: [object XPathResult]
 CONSOLE MESSAGE: line 21: [object Object]
+CONSOLE MESSAGE: line 24: function () {}
 Tests that console logging dumps proper messages.
 
 Array[2]
     0: "test1"
     1: "test2"
     length: 2
     __proto__: Array[0] console-dir.html:9
 NodeList[1]
     0: html
     length: 1
     __proto__: NodeList console-dir.html:10
 XPathResult
     booleanValue: [Exception: TypeError]
     invalidIteratorState: false
     numberValue: [Exception: TypeError]
     resultType: 4
     singleNodeValue: [Exception: TypeError]
     snapshotLength: [Exception: TypeError]
     stringValue: [Exception: TypeError]
     __proto__: XPathResult console-dir.html:11
 Object
     "": ""
     "  ": "  "
     " a b ": " a b "
     $foo5_: 0
     "a↵↵b↵c": "a↵↵b↵c"
     c d: "c d"
     negZero: -0
     __proto__: Object console-dir.html:21
+function () {}
+    arguments: null
+    caller: null
+    length: 0
+    name: ""
+    prototype: Object
+    __proto__: function Empty() {}
+    <function scope> console-dir.html:24