Hi,

well, but you have to agree that there is no point in setting a correct column offset for bar in 
foo[bar] (it's correctly set to 4 here!)
and
foo(bar)
but not for
foo.bar (there's no information provided here)
For me, this looks like it was just done the easiest way -- which is okay, of course, but is not a valid reason not to change it now.
It's also not that there's fifty things missing to make it fully functional for the purpose of highlighting / analyzing the code, this is about the only one. :)

Best regards,
Sven