anchor.diff:      }
       $dart$core.String v;
   }
  -Throwable $package$dart$wrapThrownObject([$dart$core.Object thrown]) => (() {
  -    $dart$core.bool doElse$0 = true;
  -    if (thrown is Throwable) {
  -        Throwable thrown$1;
  -        thrown$1 = thrown as Throwable;
  -        doElse$0 = false;
  -        return thrown$1;
  -    }
  -    if (doElse$0) {
  -        return new Exception(thrown.toString());
  -    }
  -})();
  -
  -Throwable dart$wrapThrownObject([$dart$core.Object thrown]) => $package$dart$wrapThrownObject(thrown);
  -
   class functionIterable$$anonymous$0_$$anonymous$1_ implements dart$$Basic, Iterator {
       functionIterable$$anonymous$0_ $outer$ceylon$language$functionIterable$$anonymous$0_;
       functionIterable$$anonymous$0_$$anonymous$1_([functionIterable$$anonymous$0_ $outer$ceylon$language$functionIterable$$anonymous$0_]) {
           this.$outer$ceylon$language$functionIterable$$anonymous$0_ = $outer$ceylon$language$functionIterable$$anonymous$0_;
  -        _$n = $outer$ceylon$language$functionIterable$$anonymous$0_.$capture$functionIterable$f.f() as Callable;
  +        _$n = $outer$ceylon$language$functionIterable$$anonymous$0_.$capture$dart$functionIterable$f.f() as Callable;
       }
       Callable _$n;
       $dart$core.Object next() => _$n.f();
   }
   class functionIterable$$anonymous$0_ implements dart$$Basic, Iterable {
  -    Callable $capture$functionIterable$f;
  -    functionIterable$$anonymous$0_([Callable $capture$functionIterable$f]) {
  -        this.$capture$functionIterable$f = $capture$functionIterable$f;
  +    Callable $capture$dart$functionIterable$f;
  +    functionIterable$$anonymous$0_([Callable $capture$dart$functionIterable$f]) {
  +        this.$capture$dart$functionIterable$f = $capture$dart$functionIterable$f;
       }
       Iterator iterator() => new functionIterable$$anonymous$0_$$anonymous$1_(this);
       $dart$core.String toString() => Iterable.$get$string(this);
  
positive.code:     Sequential getDeclaredInterfaces([Sequential annotationTypes]);
      Sequential getInterfaces([Sequential annotationTypes]);
  }
  abstract class meta$model$Constructor implements meta$model$ConstructorModel, meta$model$Applicable {
      meta$declaration$ConstructorDeclaration get declaration;
      meta$model$Class get container;
  }
  abstract class meta$model$ConstructorModel implements meta$model$Functional, meta$model$Declared {
      meta$model$ClassModel get container;
  }
  abstract class meta$model$Declared {
      meta$declaration$Declaration get declaration;
      $dart$core.Object get container;
  
negative.code:     Iterable defaultNullElements([$dart$core.Object defaultValue]);
      static Iterable $defaultNullElements([final Iterable $this, $dart$core.Object defaultValue]) => $this.map(new dart$Callable(([$dart$core.Object elem]) => (($dart$core.Object $lhs$) => null == $lhs$ ? defaultValue : $lhs$)(elem)));
      Iterable get coalesced;
      static Iterable $get$coalesced([final Iterable $this]) => dart$functionIterable(new dart$Callable(() {
          $dart$core.bool step$0$expired$81 = false;
          $dart$core.bool step$0$82() {
              if (step$0$expired$81) {
  