library test;
import self as self;
import "dart:core" as core;
import "dart:async" as asy;

abstract class MyStream<T extends core::Object = dynamic> extends asy::Stream<self::MyStream::T> {
  static factory •<T extends core::Object = dynamic>() → self::MyStream<self::MyStream::•::T>
    return null;
}
static method foo() → asy::Stream<core::List<core::int>> /* originally async* */ {
  asy::_AsyncStarStreamController<core::List<core::int>> :controller;
  dynamic :controller_stream;
  dynamic :async_stack_trace;
  dynamic :async_op_then;
  dynamic :async_op_error;
  dynamic :await_jump_var = 0;
  dynamic :await_ctx_var;
  dynamic :saved_try_context_var0;
  dynamic :saved_try_context_var1;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try
      try {
        #L1:
        {
          if(:controller.{asy::_AsyncStarStreamController::add}(core::_GrowableList::•<core::int>(0)))
            return null;
          else
            [yield] null;
          if(:controller.{asy::_AsyncStarStreamController::add}(let final<BottomType> #t1 = invalid-expression "pkg/front_end/testcases/inference/downwards_inference_yield_yield_star.dart:16:67: Error: A value of type 'MyStream<dynamic>' can't be assigned to a variable of type 'List<int>'.
 - 'MyStream' is from 'pkg/front_end/testcases/inference/downwards_inference_yield_yield_star.dart'.
 - 'List' is from 'dart:core'.
Try changing the type of the left hand side, or casting the right hand side to 'List<int>'.
  yield /*error:YIELD_OF_INVALID_TYPE*/ new /*@typeArgs=dynamic*/ MyStream();
                                                                  ^" in self::MyStream::•<dynamic>() as{TypeError} core::List<core::int>))
            return null;
          else
            [yield] null;
          if(:controller.{asy::_AsyncStarStreamController::addStream}(let final<BottomType> #t2 = invalid-expression "pkg/front_end/testcases/inference/downwards_inference_yield_yield_star.dart:17:68: Error: A value of type 'List<dynamic>' can't be assigned to a variable of type 'Stream<List<int>>'.
 - 'List' is from 'dart:core'.
 - 'Stream' is from 'dart:async'.
Try changing the type of the left hand side, or casting the right hand side to 'Stream<List<int>>'.
  yield* /*error:YIELD_OF_INVALID_TYPE*/ new /*@typeArgs=dynamic*/ List();
                                                                   ^" in core::_GrowableList::•<dynamic>(0) as{TypeError} asy::Stream<core::List<core::int>>))
            return null;
          else
            [yield] null;
          if(:controller.{asy::_AsyncStarStreamController::addStream}(self::MyStream::•<core::List<core::int>>()))
            return null;
          else
            [yield] null;
        }
        return;
      }
      on dynamic catch(dynamic :exception, dynamic :stack_trace) {
        :controller.{asy::_AsyncStarStreamController::addError}(:exception, :stack_trace);
      }
    finally {
      :controller.{asy::_AsyncStarStreamController::close}();
    }
  :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  :controller = new asy::_AsyncStarStreamController::•<core::List<core::int>>(:async_op);
  :controller_stream = :controller.{asy::_AsyncStarStreamController::stream};
  return :controller_stream;
}
static method bar() → core::Iterable<core::Map<core::int, core::int>> /* originally sync* */ {
  dynamic :await_jump_var = 0;
  dynamic :await_ctx_var;
  function :sync_op(core::_SyncIterator<core::Map<core::int, core::int>> :iterator) → core::bool yielding {
    {
      {
        :iterator.{core::_SyncIterator::_current} = core::Map::•<core::int, core::int>();
        [yield] true;
      }
      {
        :iterator.{core::_SyncIterator::_current} = let final<BottomType> #t3 = invalid-expression "pkg/front_end/testcases/inference/downwards_inference_yield_yield_star.dart:23:67: Error: A value of type 'List<dynamic>' can't be assigned to a variable of type 'Map<int, int>'.
 - 'List' is from 'dart:core'.
 - 'Map' is from 'dart:core'.
Try changing the type of the left hand side, or casting the right hand side to 'Map<int, int>'.
  yield /*error:YIELD_OF_INVALID_TYPE*/ new /*@typeArgs=dynamic*/ List();
                                                                  ^" in core::_GrowableList::•<dynamic>(0) as{TypeError} core::Map<core::int, core::int>;
        [yield] true;
      }
      {
        :iterator.{core::_SyncIterator::_yieldEachIterable} = let final<BottomType> #t4 = invalid-expression "pkg/front_end/testcases/inference/downwards_inference_yield_yield_star.dart:24:77: Error: A value of type 'Map<dynamic, dynamic>' can't be assigned to a variable of type 'Iterable<Map<int, int>>'.
 - 'Map' is from 'dart:core'.
 - 'Iterable' is from 'dart:core'.
Try changing the type of the left hand side, or casting the right hand side to 'Iterable<Map<int, int>>'.
  yield* /*error:YIELD_OF_INVALID_TYPE*/ new /*@typeArgs=dynamic, dynamic*/ Map();
                                                                            ^" in core::Map::•<dynamic, dynamic>() as{TypeError} core::Iterable<core::Map<core::int, core::int>>;
        [yield] true;
      }
      {
        :iterator.{core::_SyncIterator::_yieldEachIterable} = core::_GrowableList::•<core::Map<core::int, core::int>>(0);
        [yield] true;
      }
    }
    return false;
  }
  return new core::_SyncIterable::•<core::Map<core::int, core::int>>(:sync_op);
}
static method main() → dynamic {}