anchor.diff:              //let seekReadHasDeclSecurityIdx     (addr: byref<int>) = seekReadTaggedIdx (fun idx -> HasDeclSecurityTag idx)    2 hdsBigness &addr
               let seekReadMemberRefParentIdx     (addr: byref<int>) = seekReadTaggedIdx (fun idx -> MemberRefParentTag idx)    3 mrpBigness &addr
               let seekReadHasSemanticsIdx        (addr: byref<int>) = seekReadTaggedIdx (fun idx -> HasSemanticsTag idx)       1 hsBigness &addr
  +            let seekReadMethodDefOrRefIdx      (addr: byref<int>) = seekReadTaggedIdx (fun idx -> MethodDefOrRefTag idx)      1 mdorBigness &addr
               let seekReadImplementationIdx      (addr: byref<int>) = seekReadTaggedIdx (fun idx -> ImplementationTag idx)     2 iBigness &addr
               let seekReadCustomAttributeTypeIdx (addr: byref<int>) = seekReadTaggedIdx (fun idx -> CustomAttributeTypeTag idx) 3 catBigness &addr
               let seekReadStringIdx (addr: byref<int>) = seekReadIdx stringsBigness &addr
  
positive.code: 
              and seekReadEvents numtypars tidx =
                 { new ILEventDefs with
                      member __.Elements =
                         match seekReadOptionalIndexedRow (getNumRows ILTableNames.EventMap,(fun i -> i, seekReadEventMapRow i),(fun (_,row) -> fst row),compare tidx,false,(fun (i,row) -> (i,snd row))) with
                         | None -> [| |]
                         | Some (rowNum,beginEventIdx) ->
  
negative.code:           Parameters: ILParameters
            Return: ILReturn
            Access: ILMemberAccess
            Body: ILMethodBody option
            ImplementationFlags : MethodImplAttributes
            IsInternalCall: bool
            IsManaged: bool
            IsForwardRef: bool
            //SecurityDecls: ILPermissions
            HasSecurity: bool
            IsEntryPoint:bool
            IsSynchronized: bool
            IsPreserveSig: bool
            IsMustRun: bool
            IsNoInline: bool
            Attributes : MethodAttributes
            GenericParams: ILGenericParameterDefs
            CustomAttrs: ILCustomAttrs }
  