Web Inspector: ASSERT expanding objects in console PrimitiveBindingTraits<T>::assertV...

Web Inspector: ASSERT expanding objects in console PrimitiveBindingTraits<T>::assertValueHasExpectedType
https://bugs.webkit.org/show_bug.cgi?id=140746

Patch by Joseph Pecoraro <pecoraro@apple.com> on 2015-01-21
Reviewed by Timothy Hatcher.

Source/JavaScriptCore:

* inspector/InjectedScriptSource.js:
Do not add impure properties to the descriptor object that will
eventually be sent to the frontend.

LayoutTests:

* TestExpectations:
Unskip the test now that is doesn't ASSERT in debug builds.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@178875 268f45cc-cd09-0410-ab3c-d52691b4dbfc