library;
import self as self;
import "dart:core" as core;

typedef F<invariant X extends core::Object* = dynamic> = <Y extends X* = dynamic>() →* void;
typedef Fcov<X extends core::Object* = dynamic> = () →* X*;
typedef Fcon<contravariant X extends core::Object* = dynamic> = (X*) →* dynamic;
typedef Finv<invariant X extends core::Object* = dynamic> = (X*) →* X*;
typedef FcovBound<X extends core::num* = core::num*> = () →* X*;
typedef FconBound<contravariant X extends core::num* = core::num*> = (X*) →* dynamic;
typedef FinvBound<invariant X extends core::num* = core::num*> = (X*) →* X*;
typedef FcovCyclicBound<X extends self::A<X*>* = self::A<dynamic>*> = () →* X*;
typedef FconCyclicBound<contravariant X extends self::A<X*>* = self::A<core::Null?>*> = (X*) →* dynamic;
typedef FinvCyclicBound<invariant X extends self::A<X*>* = self::A<dynamic>*> = (X*) →* X*;
typedef FcovCyclicCoBound<X extends (X*) →* dynamic = (core::Null?) →* dynamic> = () →* X*;
typedef FconCyclicCoBound<contravariant X extends (X*) →* dynamic = (dynamic) →* dynamic> = (X*) →* dynamic;
typedef FinvCyclicCoBound<invariant X extends (X*) →* dynamic = (dynamic) →* dynamic> = (X*) →* X*;
class Acov<X extends () →* self::Acov::Y* = () →* dynamic, Y extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::Acov<self::Acov::X*, self::Acov::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class Acon<X extends (self::Acon::Y*) →* dynamic = (core::Null?) →* dynamic, Y extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::Acon<self::Acon::X*, self::Acon::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class Ainv<X extends (self::Ainv::Y*) →* self::Ainv::Y* = (dynamic) →* dynamic, Y extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::Ainv<self::Ainv::X*, self::Ainv::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class AcovBound<X extends () →* self::AcovBound::Y* = () →* core::num*, Y extends core::num* = core::num*> extends core::Object {
  synthetic constructor •() → self::AcovBound<self::AcovBound::X*, self::AcovBound::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class AconBound<X extends (self::AconBound::Y*) →* dynamic = (core::Null?) →* dynamic, Y extends core::num* = core::num*> extends core::Object {
  synthetic constructor •() → self::AconBound<self::AconBound::X*, self::AconBound::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class AinvBound<X extends (self::AinvBound::Y*) →* self::AinvBound::Y* = (core::num*) →* core::num*, Y extends core::num* = core::num*> extends core::Object {
  synthetic constructor •() → self::AinvBound<self::AinvBound::X*, self::AinvBound::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class A<X extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::A<self::A::X*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class AcovCyclicBound<X extends () →* self::AcovCyclicBound::Y* = () →* self::A<dynamic>*, Y extends self::A<self::AcovCyclicBound::Y*>* = self::A<dynamic>*> extends core::Object {
  synthetic constructor •() → self::AcovCyclicBound<self::AcovCyclicBound::X*, self::AcovCyclicBound::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class AconCyclicBound<X extends (self::AconCyclicBound::Y*) →* dynamic = (core::Null?) →* dynamic, Y extends self::A<self::AconCyclicBound::Y*>* = self::A<dynamic>*> extends core::Object {
  synthetic constructor •() → self::AconCyclicBound<self::AconCyclicBound::X*, self::AconCyclicBound::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class AinvCyclicBound<X extends (self::AinvCyclicBound::Y*) →* self::AinvCyclicBound::Y* = (self::A<dynamic>*) →* self::A<dynamic>*, Y extends self::A<self::AinvCyclicBound::Y*>* = self::A<dynamic>*> extends core::Object {
  synthetic constructor •() → self::AinvCyclicBound<self::AinvCyclicBound::X*, self::AinvCyclicBound::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class AcovCyclicCoBound<X extends () →* self::AcovCyclicCoBound::Y* = () →* (core::Null?) →* dynamic, Y extends (self::AcovCyclicCoBound::Y*) →* dynamic = (core::Null?) →* dynamic> extends core::Object {
  synthetic constructor •() → self::AcovCyclicCoBound<self::AcovCyclicCoBound::X*, self::AcovCyclicCoBound::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class AconCyclicCoBound<X extends (self::AconCyclicCoBound::Y*) →* dynamic = (core::Null?) →* dynamic, Y extends (self::AconCyclicCoBound::Y*) →* dynamic = (core::Null?) →* dynamic> extends core::Object {
  synthetic constructor •() → self::AconCyclicCoBound<self::AconCyclicCoBound::X*, self::AconCyclicCoBound::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class AinvCyclicCoBound<X extends (self::AinvCyclicCoBound::Y*) →* self::AinvCyclicCoBound::Y* = ((core::Null?) →* dynamic) →* (core::Null?) →* dynamic, Y extends (self::AinvCyclicCoBound::Y*) →* dynamic = (core::Null?) →* dynamic> extends core::Object {
  synthetic constructor •() → self::AinvCyclicCoBound<self::AinvCyclicCoBound::X*, self::AinvCyclicCoBound::Y*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class B<X extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::B<self::B::X*>*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
static method toF<X extends core::Object* = dynamic>(self::toF::X* x) → <Y extends self::toF::X* = dynamic>() →* void
  return null;
static method testTypeAliasAsTypeArgument() → void {
  self::Acov<() →* dynamic, dynamic>* source1;
  <Y extends self::Acov<() →* dynamic, dynamic>* = dynamic>() →* void fsource1 = self::toF<self::Acov<() →* dynamic, dynamic>*>(source1);
  <Y extends self::Acov<() →* dynamic, dynamic>* = dynamic>() →* void target1 = fsource1;
  self::Acon<(core::Null?) →* dynamic, dynamic>* source2;
  <Y extends self::Acon<(core::Null?) →* dynamic, dynamic>* = dynamic>() →* void fsource2 = self::toF<self::Acon<(core::Null?) →* dynamic, dynamic>*>(source2);
  <Y extends self::Acon<(core::Null?) →* dynamic, dynamic>* = dynamic>() →* void target2 = fsource2;
  self::Ainv<(dynamic) →* dynamic, dynamic>* source3;
  <Y extends self::Ainv<(dynamic) →* dynamic, dynamic>* = dynamic>() →* void fsource3 = self::toF<self::Ainv<(dynamic) →* dynamic, dynamic>*>(source3);
  <Y extends self::Ainv<(dynamic) →* dynamic, dynamic>* = dynamic>() →* void target3 = fsource3;
  self::AcovBound<() →* core::num*, core::num*>* source4;
  <Y extends self::AcovBound<() →* core::num*, core::num*>* = dynamic>() →* void fsource4 = self::toF<self::AcovBound<() →* core::num*, core::num*>*>(source4);
  <Y extends self::AcovBound<() →* core::num*, core::num*>* = dynamic>() →* void target4 = fsource4;
  self::AconBound<(core::Null?) →* dynamic, core::num*>* source5;
  <Y extends self::AconBound<(core::Null?) →* dynamic, core::num*>* = dynamic>() →* void fsource5 = self::toF<self::AconBound<(core::Null?) →* dynamic, core::num*>*>(source5);
  <Y extends self::AconBound<(core::Null?) →* dynamic, core::num*>* = dynamic>() →* void target5 = fsource5;
  self::AinvBound<(core::num*) →* core::num*, core::num*>* source6;
  <Y extends self::AinvBound<(core::num*) →* core::num*, core::num*>* = dynamic>() →* void fsource6 = self::toF<self::AinvBound<(core::num*) →* core::num*, core::num*>*>(source6);
  <Y extends self::AinvBound<(core::num*) →* core::num*, core::num*>* = dynamic>() →* void target6 = fsource6;
  self::AcovCyclicBound<() →* self::A<dynamic>*, self::A<dynamic>*>* source7;
  <Y extends self::AcovCyclicBound<() →* self::A<dynamic>*, self::A<dynamic>*>* = dynamic>() →* void fsource7 = self::toF<self::AcovCyclicBound<() →* self::A<dynamic>*, self::A<dynamic>*>*>(source7);
  <Y extends self::AcovCyclicBound<() →* self::A<dynamic>*, self::A<dynamic>*>* = dynamic>() →* void target7 = fsource7;
  self::AconCyclicBound<(core::Null?) →* dynamic, self::A<dynamic>*>* source8;
  <Y extends self::AconCyclicBound<(core::Null?) →* dynamic, self::A<dynamic>*>* = dynamic>() →* void fsource8 = self::toF<self::AconCyclicBound<(core::Null?) →* dynamic, self::A<dynamic>*>*>(source8);
  <Y extends self::AconCyclicBound<(core::Null?) →* dynamic, self::A<dynamic>*>* = dynamic>() →* void target8 = fsource8;
  self::AinvCyclicBound<(self::A<dynamic>*) →* self::A<dynamic>*, self::A<dynamic>*>* source9;
  self::AcovCyclicCoBound<() →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>* source10;
  <Y extends self::AcovCyclicCoBound<() →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>* = dynamic>() →* void fsource10 = self::toF<self::AcovCyclicCoBound<() →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>*>(source10);
  <Y extends self::AcovCyclicCoBound<() →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>* = dynamic>() →* void target10 = fsource10;
  self::AconCyclicCoBound<(core::Null?) →* dynamic, (core::Null?) →* dynamic>* source11;
  <Y extends self::AconCyclicCoBound<(core::Null?) →* dynamic, (core::Null?) →* dynamic>* = dynamic>() →* void fsource11 = self::toF<self::AconCyclicCoBound<(core::Null?) →* dynamic, (core::Null?) →* dynamic>*>(source11);
  <Y extends self::AconCyclicCoBound<(core::Null?) →* dynamic, (core::Null?) →* dynamic>* = dynamic>() →* void target11 = fsource11;
  self::AinvCyclicCoBound<((core::Null?) →* dynamic) →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>* source12;
}
static method testNested() → void {
  self::B<self::Acov<() →* dynamic, dynamic>*>* source1;
  <Y extends self::B<self::Acov<() →* dynamic, dynamic>*>* = dynamic>() →* void fsource1 = self::toF<self::B<self::Acov<() →* dynamic, dynamic>*>*>(source1);
  <Y extends self::B<self::Acov<() →* dynamic, dynamic>*>* = dynamic>() →* void target1 = fsource1;
  self::B<self::Acon<(core::Null?) →* dynamic, dynamic>*>* source2;
  <Y extends self::B<self::Acon<(core::Null?) →* dynamic, dynamic>*>* = dynamic>() →* void fsource2 = self::toF<self::B<self::Acon<(core::Null?) →* dynamic, dynamic>*>*>(source2);
  <Y extends self::B<self::Acon<(core::Null?) →* dynamic, dynamic>*>* = dynamic>() →* void target2 = fsource2;
  self::B<self::Ainv<(dynamic) →* dynamic, dynamic>*>* source3;
  <Y extends self::B<self::Ainv<(dynamic) →* dynamic, dynamic>*>* = dynamic>() →* void fsource3 = self::toF<self::B<self::Ainv<(dynamic) →* dynamic, dynamic>*>*>(source3);
  <Y extends self::B<self::Ainv<(dynamic) →* dynamic, dynamic>*>* = dynamic>() →* void target3 = fsource3;
  self::B<self::AcovBound<() →* core::num*, core::num*>*>* source4;
  <Y extends self::B<self::AcovBound<() →* core::num*, core::num*>*>* = dynamic>() →* void fsource4 = self::toF<self::B<self::AcovBound<() →* core::num*, core::num*>*>*>(source4);
  <Y extends self::B<self::AcovBound<() →* core::num*, core::num*>*>* = dynamic>() →* void target4 = fsource4;
  self::B<self::AconBound<(core::Null?) →* dynamic, core::num*>*>* source5;
  <Y extends self::B<self::AconBound<(core::Null?) →* dynamic, core::num*>*>* = dynamic>() →* void fsource5 = self::toF<self::B<self::AconBound<(core::Null?) →* dynamic, core::num*>*>*>(source5);
  <Y extends self::B<self::AconBound<(core::Null?) →* dynamic, core::num*>*>* = dynamic>() →* void target5 = fsource5;
  self::B<self::AinvBound<(core::num*) →* core::num*, core::num*>*>* source6;
  <Y extends self::B<self::AinvBound<(core::num*) →* core::num*, core::num*>*>* = dynamic>() →* void fsource6 = self::toF<self::B<self::AinvBound<(core::num*) →* core::num*, core::num*>*>*>(source6);
  <Y extends self::B<self::AinvBound<(core::num*) →* core::num*, core::num*>*>* = dynamic>() →* void target6 = fsource6;
  self::B<self::AcovCyclicBound<() →* self::A<dynamic>*, self::A<dynamic>*>*>* source7;
  <Y extends self::B<self::AcovCyclicBound<() →* self::A<dynamic>*, self::A<dynamic>*>*>* = dynamic>() →* void fsource7 = self::toF<self::B<self::AcovCyclicBound<() →* self::A<dynamic>*, self::A<dynamic>*>*>*>(source7);
  <Y extends self::B<self::AcovCyclicBound<() →* self::A<dynamic>*, self::A<dynamic>*>*>* = dynamic>() →* void target7 = fsource7;
  self::B<self::AconCyclicBound<(core::Null?) →* dynamic, self::A<dynamic>*>*>* source8;
  <Y extends self::B<self::AconCyclicBound<(core::Null?) →* dynamic, self::A<dynamic>*>*>* = dynamic>() →* void fsource8 = self::toF<self::B<self::AconCyclicBound<(core::Null?) →* dynamic, self::A<dynamic>*>*>*>(source8);
  <Y extends self::B<self::AconCyclicBound<(core::Null?) →* dynamic, self::A<dynamic>*>*>* = dynamic>() →* void target8 = fsource8;
  self::B<self::AinvCyclicBound<(self::A<dynamic>*) →* self::A<dynamic>*, self::A<dynamic>*>*>* source9;
  self::B<self::AcovCyclicCoBound<() →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>*>* source10;
  <Y extends self::B<self::AcovCyclicCoBound<() →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>*>* = dynamic>() →* void fsource10 = self::toF<self::B<self::AcovCyclicCoBound<() →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>*>*>(source10);
  <Y extends self::B<self::AcovCyclicCoBound<() →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>*>* = dynamic>() →* void target10 = fsource10;
  self::B<self::AconCyclicCoBound<(core::Null?) →* dynamic, (core::Null?) →* dynamic>*>* source11;
  <Y extends self::B<self::AconCyclicCoBound<(core::Null?) →* dynamic, (core::Null?) →* dynamic>*>* = dynamic>() →* void fsource11 = self::toF<self::B<self::AconCyclicCoBound<(core::Null?) →* dynamic, (core::Null?) →* dynamic>*>*>(source11);
  <Y extends self::B<self::AconCyclicCoBound<(core::Null?) →* dynamic, (core::Null?) →* dynamic>*>* = dynamic>() →* void target11 = fsource11;
  self::B<self::AinvCyclicCoBound<((core::Null?) →* dynamic) →* (core::Null?) →* dynamic, (core::Null?) →* dynamic>*>* source12;
}
static method main() → dynamic {
  self::testTypeAliasAsTypeArgument();
  self::testNested();
}