/// <summary>
/// Scan the type and its base types for an implementation of an interface method. Returns null if no
/// implementation is found.
/// </summary>
public static MethodDesc ResolveInterfaceMethodTargetWithVariance(this TypeDesc thisType, MethodDesc interfaceMethodToResolve)
{
Debug.Assert(interfaceMethodToResolve.OwningType.IsInterface);
MethodDesc result;
TypeDesc currentType = thisType;
do
{
result = currentType.ResolveVariantInterfaceMethodToVirtualMethodOnType(interfaceMethodToResolve);
currentType = currentType.BaseType;
}while (result == null && currentType != null);
return(result);
}