Invalid IL generation with latest stable oxygene compiler 10.0.0.2249

Source that compiled and ran fine with version 9
When using current stable version 10

  1. had to make some source changes for it to compile
  2. seems to be generating some invalid IL that is failing to run

using dotPeek to decompile, the effected area produces the following

        Stopwatch stopwatch2 = Stopwatch.StartNew();
        // ISSUE: reference to a compiler-generated method
        // ISSUE: reference to a compiler-generated method
        new Groupcall.DataSetSql.DataSetSql(dataSet, (IDictionary<string, object>) source2.ToDictionary(_ => _.get_name(), _ => _.get_value(), (IEqualityComparer<string>) StringComparer.InvariantCultureIgnoreCase)).Execute(paramValue, new TimeSpan?());
        InternalSimsHelper.Log("DataSetSql took " + stopwatch2.Elapsed.ToString(), 0);

Alex

Do you have a more ocmplete testcase I can use to reproduce this?