Handle common web types

[JohanLarsson]

I don't write much web so need help here. Stumbled on this https://docs.microsoft.com/en-us/dotnet/api/system.net.http.httpresponsemessage.ensuresuccessstatuscode?view=netcore-3.1#remarks

The EnsureSuccessStatusCode method throws an exception if the HTTP response was unsuccessful. In .NET Framework and .NET Core 2.2 and earlier versions, if the Content is not null, this method will also call Dispose to free managed and unmanaged resources. Starting with .NET Core 3.0, the content will not be disposed.

Analyzer have potential to be very useful for handling things like this.

[JohanLarsson]

I'm adding support for framework types in this format:

                    IMethodSymbol { ContainingType: { MetadataName: "File" }, MetadataName: "OpenText" } => Result.Yes,
                    IMethodSymbol { ContainingType: { MetadataName: "File" }, MetadataName: "CreateText" } => Result.Yes,
                    IMethodSymbol { ContainingType: { MetadataName: "File" }, MetadataName: "AppendText" } => Result.Yes,
                    IMethodSymbol { ContainingType: { MetadataName: "File" }, MetadataName: "Copy" } => Result.No,

[Test]
public static void Dump()
{
    var set = new HashSet<string>();
    foreach (var method in typeof(System.Net.HttpWebResponse).GetMethods(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.DeclaredOnly).OrderBy(x => x.Name))
    {
        if (!method.IsSpecialName &&
            set.Add(method.Name))
        {
            Console.WriteLine($"                    IMethodSymbol {{ ContainingType: {{ MetadataName: \"{method.DeclaringType.Name}\" }}, MetadataName: \"{method.Name}\" }} => Result.{(typeof(IDisposable).IsAssignableFrom(method.ReturnType) ? "Yes" : "No")},");
        }
    }
}

Of course EnsureSuccessStatusCode above would need more handling and tests but it is pretty straightforward. The problem for me is what types to add support for and how.
My thinking is it is good if we support common types in the framework and open source nugets.