Index: pkg/compiler/lib/src/inferrer/concrete_types_inferrer.dart |
diff --git a/pkg/compiler/lib/src/inferrer/concrete_types_inferrer.dart b/pkg/compiler/lib/src/inferrer/concrete_types_inferrer.dart |
index 474f71f200c1f23e74b80a53ac1be843aa3f04dc..4942e1d8771279a65c9087801746200499fd5487 100644 |
--- a/pkg/compiler/lib/src/inferrer/concrete_types_inferrer.dart |
+++ b/pkg/compiler/lib/src/inferrer/concrete_types_inferrer.dart |
@@ -450,6 +450,8 @@ class ConcreteTypeSystem extends TypeSystem<ConcreteType> { |
} else if (element == compiler.backend.intImplementation) { |
return new TypeMask.nonNullSubclass(compiler.backend.intImplementation, |
compiler.world); |
+ } else if (!compiler.world.isInstantiated(element.declaration)) { |
+ return new TypeMask.nonNullSubtype(element.declaration, compiler.world); |
} else { |
return new TypeMask.nonNullExact(element.declaration, compiler.world); |
} |