Suggestion: Access to loop variable in closure

If you access loop variable from closure, variable value will change as loop continues.
This can cause unintended behaviour and such accesses are generally discouraged.
It will be helpful if Roslynator have analyzer to warn this.

ReSharper has similar feature:
https://www.jetbrains.com/help/resharper/AccessToForEachVariableInClosure.html

Start by reviewing Roslynator's existing analyzer structure and the issue's ReSharper reference for the expected warning behavior. Identify how closure captures of loop variables are represented and where analyzer tests live; done means the requested cases produce a warning without unrelated diagnostics.

Written by the indexing model from the issue text.