[llvm] r196607 - Integrated assembler incorrectly lexes ARM-style comments

[David Peixotto]

> >> Just for consistency with I'd put the initialization in the body of
> >> the constructor like the initializer for isAtStartOfLine. Good to
> >> commit with that change. Thanks!
> >
> > I had to put it in the initializer list because I made the class
> > variable const. I wasn't sure about that decision. Is it better to
> > keep it const and use the initializer list, or make it non-const (then
> > I can initialize it in the body)?
> 
> I don't have a really strong opinion, but a slight preference for dropping
> the 'const.' In theory this is something that could vary within an
> assembly translation unit. For example, Intel and ARM both have syntax
> variants that are switchable via an assembler directive. There's no reason
> such a switch could not also change thing like the comment character.

I removed the const and moved the initialization to the constructor body.
Committed in 19622, thanks.