Easy to find C# & F# & TS pitfalls

[knocte]

e.g. for C#: \s+async\s+void\s+ -> replace with async Task

e.g. for TypeScript: undefined -> replace with ? or null

e.g. for F#:
* \s+task\s*{ -> replace with async (and Async.StartAsTask if needed)
* let! _ = -> replace with do!