code: private void apportionTypeAnnotations(JCLambda tree,
                                                Supplier<List<Attribute.TypeCompound>> source,
                                                Consumer<List<Attribute.TypeCompound>> owner,
                                                Consumer<List<Attribute.TypeCompound>> lambda) {
  
              ListBuffer<Attribute.TypeCompound> ownerTypeAnnos = new ListBuffer<>();
              ListBuffer<Attribute.TypeCompound> lambdaTypeAnnos = new ListBuffer<>();
  
              for (Attribute.TypeCompound tc : source.get()) {
                  if (tc.position.onLambda == tree) {
                      lambdaTypeAnnos.append(tc);
                  } else {
                      ownerTypeAnnos.append(tc);
                  }
              }
              if (lambdaTypeAnnos.nonEmpty()) {
                  owner.accept(ownerTypeAnnos.toList());
                  lambda.accept(lambdaTypeAnnos.toList());
              }
          }
docs: Reassign type annotations from the source that should really belong to the lambda