Step Completion

[Socolin]

See documentation in doc/how-it-works/completion.md

Reviews are welcome.
I want to add some tests too, there are a lot of edge case here.

[nemesv]

The documentation is very good and helpful to understand the feature. 👍

[nemesv]

@Socolin it seems with the namespace rename something has changed in the build order, and the generation of the CSharpErrors.generated.cs is executed later which fails the build.

Locally in Rider it is always working, manually executing the buildPlugin gradle task is working mostly...
But it was also failed 2 times, however I cannot really reproduce it anymore.

What I've tried to delete CSharpErrors.generated.cs and rerun the task, but in most cases it works. However in the build it always fails. I've tried to restart multiple times.

[Socolin]

Yes I do not understand what is the problem, I'll take a look during the weekend

[Socolin]

So I had to optimize some stuff in the Regex library, it was taking 3 minutes to parse the regex in my work project (not that big) so it was not usable. Now it feel reactive and quick enough, this problem should be defenitively fixed once we can use PCRE.NET for this.

After testing with my projects I also found some details, when a step contains a \( or \) etc.. so I Unescape the pattern before showing it in completion

Completion is also now handling optional group / characters correctly (when there are ? in pattern)