Indicate mutable members in editor.

[JohanLarsson]

Not sure how to render it best but it is useful info. I'm thinking maybe make the last char of the identifier of a mutable member in some distinct different colour. That may not work well for single char local variable names though. FSharp has had this for a while.

[CyrusNajmabadi]

@JohanLarsson can you show the picture from f#?

[JohanLarsson]

@ReedCopsey can you help us out with a screenie?

[JohanLarsson]

An alternative could be to animate opacity/visibility for mutables so that they flicker like broken fluorescent lamps :)

[jnm2]

I would like an option that changes the look of usages at or after a possible reassignment has occurred, but not before that point.

[jnm2]

Screenshot of Roslyn code that I stole from @alrz, demonstrating a ReSharper style option:

(What I'd prefer is no underline in if (workingDirectory == null) but underlines everywhere below it in the file.)