Tests that selector line is computed correctly regardless of its start column. Bug 110732.

[expanded] 
element.style { ()

[expanded] 
#container #inspected { (selector-line.scss:4 -> selector-line.scss:4:16)
    color: green;

[expanded] 
#inspected { (<style>)
/-- overloaded --/     color: green;

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