I thought GetInterfaceMap should work for every interface returned by
GetInterfaces()... but here I have a counterexample.  Has anyone seen this
before?  Here's a unit test for Zanebug (substitute your favorite test
runner):

using Adapdev.UnitTest;

[TestFixture]
class GetInterfaceMap
{
   [Test]
   public static void ByteArray()
   {
       System.Type baseType = typeof(System.Byte[]);
       foreach (System.Type iface in baseType.GetInterfaces())
       {
           System.Diagnostics.Trace.WriteLine(iface.FullName);
           Assert.IsNotNull(baseType.GetInterfaceMap(iface));
       }
   }
}

It fails for GetInterfaces()[4/5/6], which are the instantiated generic
interfaces, IList<Byte>, ICollection<Byte>, and IEnumerable<Byte>.  Is this
a bug, or is it documented somewhere that it should work this way?

------ Test started: Assembly: RealTime.Tests.dll ------

System.ICloneable
System.Collections.IList
System.Collections.ICollection
System.Collections.IEnumerable
System.Collections.Generic.IList`1[[System.Byte, mscorlib, Version=2.0.0.0,
Culture=neutral, PublicKeyToken=b77a5c561934e089]]
TestCase 'M:GetInterfaceMap.ByteArray' failed: Interface not found.
  System.ArgumentException: Interface not found.
  at System.RuntimeTypeHandle.GetFirstSlotForInterface(IntPtr
interfaceHandle)
  at System.RuntimeTypeHandle.GetFirstSlotForInterface(RuntimeTypeHandle
interfaceHandle)
  at System.RuntimeType.GetInterfaceMap(Type ifaceType)
  Realtime\RealTimeTests\GetInterfaceMap.cs(13,0): at
GetInterfaceMap.ByteArray()

0 passed, 1 failed, 0 skipped, took 1.39 seconds.