IDE0060 (Remove unused parameter) false positive for interpolated string handler argument

[Youssef1313]

Version Used:

VS 17.13 Preview 1

Steps to Reproduce:

public static void M(bool x, [InterpolatedStringHandlerArgument(nameof(x))] ref MyInterpolatedStringHandler y)
{
    // Do something with message. Analyzer will complain that `x` parameter isn't used. But it's actually used as the value will be passed to `MyInterpolatedStringHandler`
}

Diagnostic Id: IDE0060 (Remove unused parameter)

Expected Behavior:

No diagnostic

Actual Behavior:

False positive diagnostic