Additional classes/parsing

[PlaidPhantom]

Hi, I maintain an Atom Theme and there's a couple things I'd like to add styling for in C#, however the parsing doesn't seem to be adding the appropriate classes. The cases I've noticed so far are:

• parentheses on if statements and method definitions are not classed, though method call parens are (they get .punctuation.definition). Javascript classes them as .meta.brace.round, maybe C# could do something similar?
• Operators do not appear to get broken out at all. In most other languages I've worked on operators will have the .operator class.

[winstliu]

We're phasing out .meta.brace in favor of .punctuation.definition.whatever.(begin|end).bracket.(round|square|curly). Just an FYI to whoever wants to work on this.

[damieng]

We're moving away from having too many classes as it has a large negative impact on rendering performance.