bug: Sniper printer fails to print comment preceding type member if all modifiers in a modifier list are removed

[slarse]

Hi!

This is related to #3697, but in terms of implementation it's an entirely separate issue. Anyway, when you have a commented type member like so:

// this is a comment
private static int a = 2;

And you remove private and static, the comment also disappears.

int a = 2;

This happens because of how the field is split into source fragments, the modifier list becoming one collection of fragments. When the comment is to be printed (which happens when the next concrete element is printed, in this case int, as comments are treated like whitespace), the non-printed modifier list "blocks" discovery of the comment when searching for preceding whitespace/comments to print.

I'm working on a fix.