Tests that proper source lines are reported for the styles after unrecognizer / invalid selector.

Initial value
[expanded] 
element.style { ()

[expanded] 
#container { (<style>)
    padding: 15px;

[expanded] 
div { (user agent stylesheet)
    display: block;
    unicode-bidi: isolate;

After changing property
[expanded] 
element.style { ()

[expanded] 
#container { (<style>)
    padding: 20px;

[expanded] 
div { (user agent stylesheet)
    display: block;
    unicode-bidi: isolate;