NET-1727 Fix S3241 FP: Do not raise if the method is used as an argument

[mary-georgiou-sonarsource]

Repro steps

void Method(AnInterface foo)
{
    Func(0);
    foo?.DoSomething(Func);

    bool Func(int value) => true; // FP
}

public interface AnInterface
{
    void DoSomething(Func<int, bool> method);
}

Expected behavior

Should not raise an issue, when the delegate of the method is used as an argument.

Known workarounds

Use discard for the output.

Related information

• C#/VB.NET Plugins version: 9.3

[pavel-mikula-sonarsource]

Internal ticket NET-1727