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

Text
[expanded] 
element.style  { ()

======== Matched CSS Rules ========
[expanded] 
#container #inspected  { (selector-line.scss:4)
color: green;

[expanded] 
#inspected  { (selector-line.html:5)
/-- overloaded --/ color: green;

[expanded] 
div  { (user agent stylesheet)
display: block;