| library; | 
 | import self as self; | 
 | import "dart:core" as core; | 
 |  | 
 | abstract class A extends core::Object { | 
 |   synthetic constructor •() → self::A | 
 |     ; | 
 |   abstract method method(dynamic a) → void; | 
 | } | 
 | abstract class B extends core::Object { | 
 |   synthetic constructor •() → self::B | 
 |     ; | 
 |   abstract method method(covariant-by-declaration core::num a) → void; | 
 | } | 
 | abstract class C extends core::Object { | 
 |   synthetic constructor •() → self::C | 
 |     ; | 
 |   abstract method method(covariant-by-declaration core::int a) → void; | 
 | } | 
 | abstract class D1 extends core::Object implements self::A, self::B, self::C { | 
 |   synthetic constructor •() → self::D1 | 
 |     ; | 
 |   abstract forwarding-stub synthetic method method(covariant-by-declaration dynamic a) → void; | 
 | } | 
 | abstract class D2 extends core::Object implements self::A, self::B { | 
 |   synthetic constructor •() → self::D2 | 
 |     ; | 
 |   abstract forwarding-stub synthetic method method(covariant-by-declaration dynamic a) → void; | 
 | } | 
 | abstract class D3 extends core::Object implements self::B, self::C { | 
 |   synthetic constructor •() → self::D3 | 
 |     ; | 
 | } | 
 | abstract class D4 extends core::Object implements self::C, self::B { | 
 |   synthetic constructor •() → self::D4 | 
 |     ; | 
 |   abstract synthetic member-signature method method(covariant-by-declaration core::num a) → void; -> self::B::method | 
 | } | 
 | abstract class D5 extends core::Object implements self::A, self::C { | 
 |   synthetic constructor •() → self::D5 | 
 |     ; | 
 |   abstract forwarding-stub synthetic method method(covariant-by-declaration dynamic a) → void; | 
 | } | 
 | abstract class E extends core::Object { | 
 |   synthetic constructor •() → self::E | 
 |     ; | 
 |   abstract method method(core::num a) → void; | 
 | } | 
 | abstract class F extends core::Object { | 
 |   synthetic constructor •() → self::F | 
 |     ; | 
 |   abstract method method(covariant-by-declaration core::int a) → void; | 
 | } | 
 | abstract class G1 extends core::Object implements self::E, self::F { | 
 |   synthetic constructor •() → self::G1 | 
 |     ; | 
 |   abstract forwarding-stub synthetic method method(covariant-by-declaration core::num a) → void; | 
 | } | 
 | abstract class G2 extends core::Object implements self::F, self::E { | 
 |   synthetic constructor •() → self::G2 | 
 |     ; | 
 |   abstract forwarding-stub synthetic method method(covariant-by-declaration core::num a) → void; | 
 | } | 
 | static method main() → dynamic | 
 |   ; |