anchor.diff:                  None
               else
                   match expr with
  -                | SynExpr.Quote(_synExpr1, _, _synExpr2, _, _range) ->
  -                    None
  +                | SynExpr.Quote(synExpr1, _, synExpr2, _, _range) ->
  +                    List.tryPick walkExpr [synExpr1; synExpr2]
  +
                   | SynExpr.Const(_synConst, _range) -> 
                       None
   
  
positive.code:                     walkSynTypeDefn typeDef
                  | SynMemberDefn.ValField(_field, _range) ->
                      None
                  | SynMemberDefn.LetBindings _
                  | SynMemberDefn.Open _
                  | SynMemberDefn.ImplicitInherit _
                  | SynMemberDefn.Inherit _
  
negative.code:                 | SynExpr.Lambda(_, _, _synSimplePats, synExpr, _range) ->
                       walkExpr synExpr
  
                  | SynExpr.MatchLambda(_isExnMatch, _argm, synMatchClauseList, _spBind, _wholem) -> 
                      synMatchClauseList |> List.tryPick (fun (Clause(_, _, e, _, _)) -> walkExpr e)
                  | SynExpr.Match(_sequencePointInfoForBinding, synExpr, synMatchClauseList, _, _range) ->
                      walkExpr synExpr
                      |> Option.orElse (synMatchClauseList |> List.tryPick (fun (Clause(_, _, e, _, _)) -> walkExpr e))
  
                  | SynExpr.Lazy(synExpr, _range) ->
                      walkExpr synExpr
                  | SynExpr.Do(synExpr, _range) ->
  