[DevTools] Add additional accessor check in InjectedScriptSource.js

third_party/WebKit/LayoutTests/inspector/sources/debugger/properties-special-expected.txt

 CONSOLE MESSAGE: line 10: true
 CONSOLE MESSAGE: line 11: function (a,b) { return a + b; }
 CONSOLE MESSAGE: line 12: function () { [native code] }
 Tests how debugger presents special properties of closures, bound functions and object wrappers.
 
 properties-special.html:10 Boolean
     __proto__: Boolean
     [[PrimitiveValue]]: true
 properties-special.html:11 anonymous(a, b)
     arguments: null
     caller: null
     length: 2
     name: ""
     prototype: Object
     __proto__: ()
     <function scope>
 properties-special.html:12 anonymous()
-    arguments: (...)
-    caller: (...)

[lushnikov, 2016/05/06 04:28:11]

how come this got removed?

[kozy, 2016/05/06 15:24:55]

Bound function object contains function ThrowTypeError() as getter for arguments
property. It's internal V8 function and hasn't source code. We get TypeError
excption while call and ignore this property in catch block because
accessorPropertiesOnly flag equals true. I think that it's good change because
this property doesn't add any value for users.

     length: 1
     name: "bound "
     __proto__: ()
     [[TargetFunction]]: (a,b)
     [[BoundThis]]: Object
     [[BoundArgs]]: Array[1]