Downward inference

test/dart_codegen/expect/_internal/iterable.dart

 part of dart._internal;
  abstract class EfficientLength {int get length;
 }
  abstract class ListIterable<E> extends IterableBase<E> implements EfficientLength {int get length;
  E elementAt(int i);
  const ListIterable();
  Iterator<E> get iterator => new ListIterator<E>(this);
  void forEach(void action(E element)) {
 int length = this.length;
  for (int i = 0; i < length; i++) {
@@ skipping 350 matching lines @@
 }
 ), "CastResult", """line 454, column 76 of dart:_internal/iterable.dart: """, __x0 is Iterable<T>, false))(f(x0));
  return f == null ? null : c;
 }
 , _f, null, DEVC$RT.type((__t2<S, T> _) {
 }
 ), "Wrap", """line 454, column 76 of dart:_internal/iterable.dart: """, _f is __t2<S, T>));
 }
  class ExpandIterator<S, T> implements Iterator<T> {final Iterator<S> _iterator;
  final _ExpandFunction _f;
- Iterator<T> _currentExpansion = ((__x6) => DEVC$RT.cast(__x6, null, DEVC$RT.type((Iterator<T> _) {
-}
-), "InferableAllocation", """line 463, column 35 of dart:_internal/iterable.dart: """, __x6 is Iterator<T>, false))(const EmptyIterator());
+ Iterator<T> _currentExpansion = const EmptyIterator<T>();
  T _current;
  ExpandIterator(this._iterator, Iterable<T> this._f(S element));
  void _nextExpansion() {
 }
  T get current => _current;
  bool moveNext() {
 if (_currentExpansion == null) return false;
  while (!_currentExpansion.moveNext()) {
 _current = null;
  if (_iterator.moveNext()) {
 _currentExpansion = null;
- _currentExpansion = ((__x7) => DEVC$RT.cast(__x7, DEVC$RT.type((Iterator<dynamic> _) {
+ _currentExpansion = ((__x6) => DEVC$RT.cast(__x6, DEVC$RT.type((Iterator<dynamic> _) {
 }
 ), DEVC$RT.type((Iterator<T> _) {
 }
-), "CompositeCast", """line 481, column 29 of dart:_internal/iterable.dart: """, __x7 is Iterator<T>, false))(_f(_iterator.current).iterator);
+), "CompositeCast", """line 481, column 29 of dart:_internal/iterable.dart: """, __x6 is Iterator<T>, false))(_f(_iterator.current).iterator);
 }
  else {
 return false;
 }
 }
  _current = _currentExpansion.current;
  return true;
 }
 }
  class TakeIterable<E> extends IterableBase<E> {final Iterable<E> _iterable;
@@ skipping 33 matching lines @@
 }
  E get current {
 if (_remaining < 0) return null;
  return _iterator.current;
 }
 }
  class TakeWhileIterable<E> extends IterableBase<E> {final Iterable<E> _iterable;
  final _ElementPredicate _f;
  TakeWhileIterable(this._iterable, bool this._f(E element));
  Iterator<E> get iterator {
-return new TakeWhileIterator<E>(_iterable.iterator, DEVC$RT.wrap((bool f(dynamic __u8)) {
+return new TakeWhileIterator<E>(_iterable.iterator, DEVC$RT.wrap((bool f(dynamic __u7)) {
 bool c(dynamic x0) => f(x0);
  return f == null ? null : c;
 }
-, _f, null, DEVC$RT.type((__t9<E> _) {
+, _f, null, DEVC$RT.type((__t8<E> _) {
 }
-), "Wrap", """line 555, column 57 of dart:_internal/iterable.dart: """, _f is __t9<E>));
+), "Wrap", """line 555, column 57 of dart:_internal/iterable.dart: """, _f is __t8<E>));
 }
 }
  class TakeWhileIterator<E> extends Iterator<E> {final Iterator<E> _iterator;
  final _ElementPredicate _f;
  bool _isFinished = false;
  TakeWhileIterator(this._iterator, bool this._f(E element));
  bool moveNext() {
 if (_isFinished) return false;
  if (!_iterator.moveNext() || !_f(_iterator.current)) {
 _isFinished = true;
@@ skipping 46 matching lines @@
 for (int i = 0; i < _skipCount; i++) _iterator.moveNext();
  _skipCount = 0;
  return _iterator.moveNext();
 }
  E get current => _iterator.current;
 }
  class SkipWhileIterable<E> extends IterableBase<E> {final Iterable<E> _iterable;
  final _ElementPredicate _f;
  SkipWhileIterable(this._iterable, bool this._f(E element));
  Iterator<E> get iterator {
-return new SkipWhileIterator<E>(_iterable.iterator, DEVC$RT.wrap((bool f(dynamic __u13)) {
+return new SkipWhileIterator<E>(_iterable.iterator, DEVC$RT.wrap((bool f(dynamic __u12)) {
 bool c(dynamic x0) => f(x0);
  return f == null ? null : c;
 }
-, _f, null, DEVC$RT.type((__t14<E> _) {
+, _f, null, DEVC$RT.type((__t13<E> _) {
 }
-), "Wrap", """line 648, column 57 of dart:_internal/iterable.dart: """, _f is __t14<E>));
+), "Wrap", """line 648, column 57 of dart:_internal/iterable.dart: """, _f is __t13<E>));
 }
 }
  class SkipWhileIterator<E> extends Iterator<E> {final Iterator<E> _iterator;
  final _ElementPredicate _f;
  bool _hasSkipped = false;
  SkipWhileIterator(this._iterator, bool this._f(E element));
  bool moveNext() {
 if (!_hasSkipped) {
 _hasSkipped = true;
  while (_iterator.moveNext()) {
 if (!_f(_iterator.current)) return true;
 }
 }
  return _iterator.moveNext();
 }
  E get current => _iterator.current;
 }
  class EmptyIterable<E> extends IterableBase<E> implements EfficientLength {const EmptyIterable();
- Iterator<E> get iterator => ((__x16) => DEVC$RT.cast(__x16, null, DEVC$RT.type((Iterator<E> _) {
-}
-), "InferableAllocation", """line 678, column 31 of dart:_internal/iterable.dart: """, __x16 is Iterator<E>, false))(const EmptyIterator());
+ Iterator<E> get iterator => const EmptyIterator<E>();
  void forEach(void action(E element)) {
 }
  bool get isEmpty => true;
  int get length => 0;
  E get first {
 throw IterableElementError.noElement();
 }
  E get last {
 throw IterableElementError.noElement();
 }
@@ skipping 211 matching lines @@
  buffer.write(list[i]);
 }
 }
  return buffer.toString();
 }
  Iterable<T> where(Iterable iterable, bool f(var element)) {
 return new WhereIterable<T>(DEVC$RT.cast(iterable, DEVC$RT.type((Iterable<dynamic> _) {
 }
 ), DEVC$RT.type((Iterable<T> _) {
 }
-), "CompositeCast", """line 961, column 33 of dart:_internal/iterable.dart: """, iterable is Iterable<T>, false), DEVC$RT.wrap((bool f(dynamic __u17)) {
+), "CompositeCast", """line 961, column 33 of dart:_internal/iterable.dart: """, iterable is Iterable<T>, false), DEVC$RT.wrap((bool f(dynamic __u15)) {
 bool c(dynamic x0) => f(x0);
  return f == null ? null : c;
 }
-, f, null, DEVC$RT.type((__t18<T> _) {
+, f, null, DEVC$RT.type((__t16<T> _) {
 }
-), "Wrap", """line 961, column 43 of dart:_internal/iterable.dart: """, f is __t18<T>));
+), "Wrap", """line 961, column 43 of dart:_internal/iterable.dart: """, f is __t16<T>));
 }
  static Iterable map(Iterable iterable, f(var element)) {
 return new MappedIterable(iterable, f);
 }
  static Iterable mapList(List list, f(var element)) {
 return new MappedListIterable(list, f);
 }
  static Iterable expand(Iterable iterable, Iterable f(var element)) {
 return new ExpandIterable(iterable, f);
 }
  Iterable<T> takeList(List list, int n) {
 return new SubListIterable<T>(DEVC$RT.cast(list, DEVC$RT.type((List<dynamic> _) {
 }
 ), DEVC$RT.type((Iterable<T> _) {
 }
 ), "CompositeCast", """line 978, column 35 of dart:_internal/iterable.dart: """, list is Iterable<T>, false), 0, n);
 }
  Iterable<T> takeWhile(Iterable iterable, bool test(var value)) {
 return new TakeWhileIterable<T>(DEVC$RT.cast(iterable, DEVC$RT.type((Iterable<dynamic> _) {
 }
 ), DEVC$RT.type((Iterable<T> _) {
 }
-), "CompositeCast", """line 983, column 37 of dart:_internal/iterable.dart: """, iterable is Iterable<T>, false), DEVC$RT.wrap((bool f(dynamic __u20)) {
+), "CompositeCast", """line 983, column 37 of dart:_internal/iterable.dart: """, iterable is Iterable<T>, false), DEVC$RT.wrap((bool f(dynamic __u18)) {
 bool c(dynamic x0) => f(x0);
  return f == null ? null : c;
 }
-, test, null, DEVC$RT.type((__t18<T> _) {
+, test, null, DEVC$RT.type((__t16<T> _) {
 }
-), "Wrap", """line 983, column 47 of dart:_internal/iterable.dart: """, test is __t18<T>));
+), "Wrap", """line 983, column 47 of dart:_internal/iterable.dart: """, test is __t16<T>));
 }
  Iterable<T> skipList(List list, int n) {
 return new SubListIterable<T>(DEVC$RT.cast(list, DEVC$RT.type((List<dynamic> _) {
 }
 ), DEVC$RT.type((Iterable<T> _) {
 }
 ), "CompositeCast", """line 988, column 35 of dart:_internal/iterable.dart: """, list is Iterable<T>, false), n, null);
 }
  Iterable<T> skipWhile(Iterable iterable, bool test(var value)) {
 return new SkipWhileIterable<T>(DEVC$RT.cast(iterable, DEVC$RT.type((Iterable<dynamic> _) {
 }
 ), DEVC$RT.type((Iterable<T> _) {
 }
-), "CompositeCast", """line 993, column 37 of dart:_internal/iterable.dart: """, iterable is Iterable<T>, false), DEVC$RT.wrap((bool f(dynamic __u21)) {
+), "CompositeCast", """line 993, column 37 of dart:_internal/iterable.dart: """, iterable is Iterable<T>, false), DEVC$RT.wrap((bool f(dynamic __u19)) {
 bool c(dynamic x0) => f(x0);
  return f == null ? null : c;
 }
-, test, null, DEVC$RT.type((__t18<T> _) {
+, test, null, DEVC$RT.type((__t16<T> _) {
 }
-), "Wrap", """line 993, column 47 of dart:_internal/iterable.dart: """, test is __t18<T>));
+), "Wrap", """line 993, column 47 of dart:_internal/iterable.dart: """, test is __t16<T>));
 }
  Iterable<T> reversedList(List list) {
 return new ReversedListIterable<T>(DEVC$RT.cast(list, DEVC$RT.type((List<dynamic> _) {
 }
 ), DEVC$RT.type((Iterable<T> _) {
 }
 ), "CompositeCast", """line 997, column 40 of dart:_internal/iterable.dart: """, list is Iterable<T>, false));
 }
  static void sortList(List list, int compare(a, b)) {
 if (compare == null) compare = Comparable.compare;
@@ skipping 141 matching lines @@
 }
  return result;
 }
 }
  abstract class IterableElementError {static StateError noElement() => new StateError("No element");
  static StateError tooMany() => new StateError("Too many elements");
  static StateError tooFew() => new StateError("Too few elements");
 }
  typedef Iterable<T> __t2<S, T>(S __u3);
  typedef Iterable<dynamic> __t4(dynamic __u5);
- typedef bool __t9<E>(E __u10);
- typedef bool __t11(dynamic __u12);
- typedef bool __t14<E>(E __u15);
- typedef bool __t18<T>(T __u19);
+ typedef bool __t8<E>(E __u9);
+ typedef bool __t10(dynamic __u11);
+ typedef bool __t13<E>(E __u14);
+ typedef bool __t16<T>(T __u17);