Add support for "magic attributes"

[sunnamed434]

Summary

Magic attributes such as these, may cause issues

Basic Example

For example, if in file exists such attribute, the renamer protection will break everything

namespace System.Diagnostics.CodeAnalysis
{
    /// <summary>
    /// Specifies that null is allowed as an input even if the corresponding type disallows it.
    /// </summary>
    [global::System.AttributeUsage(
        global::System.AttributeTargets.Field |
        global::System.AttributeTargets.Parameter |
        global::System.AttributeTargets.Property,
        Inherited = false)]
    internal sealed class AllowNullAttribute : global::System.Attribute
    {
    }
}