/// <summary>
/// Only detects direct assignment, not use of ByRef, late binding, dynamic, reflection, etc.
/// </summary>
public static async ValueTask <bool> IsNeverWrittenAsync(this Solution solution, ISymbol symbol, Location outsideLocation = null)
{
return(symbol.AllWriteUsagesKnowable() && !await ContainsWriteUsagesForAsync(solution, symbol, outsideLocation));
}
