anchor.diff:  open LicenseToCIL.Stack
   open LicenseToCIL.Ops
   open System
  +open System.Collections.Generic
   open System.Reflection
   open System.Reflection.Emit
   
  
positive.code:             yield ldarg 0
              yield ldfld entReader
              yield callvirt1 (entReaderType.GetMethod("ToEntity"))
          }
negative.code:             yield ldfld found
              yield brtrue's skipOnes
              yield dup
              yield ldfld colInfo
              yield ldc'i4 0
              yield blt's skip
              yield cil {
                  yield ldarg 1 // row
                  yield ldarg 0 // this
                  yield ldfld colInfo // row, index
                  yield generalize2 primitive.Converter
                  yield stfld colValue
                  yield ldarg 0
  