Remaining private libs

Handle internal libraries correctly.

Revert `part of "file.dart"` to `part of "dart:file"` to avoid warnings in fasta.

BUG=
R=floitsch@google.com

Review-Url: https://codereview.chromium.org/2974433002 .

sdk/lib/_internal/js_runtime/lib/annotations.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "js_helper.dart";
+part of "dart:_js_helper";
 
 /// Tells the optimizing compiler that the annotated method has no
 /// side-effects. Allocations don't count as side-effects, since they can be

sdk/lib/_internal/js_runtime/lib/constant_map.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "js_helper.dart";
+part of "dart:_js_helper";
 
 class ConstantMapView<K, V> extends UnmodifiableMapView implements ConstantMap {
   ConstantMapView(Map base) : super(base);

sdk/lib/_internal/js_runtime/lib/isolate_serialization.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "isolate_helper.dart";
+part of "dart:_isolate_helper";
 
 /// Serialize [message].
 _serializeMessage(message) {

sdk/lib/_internal/js_runtime/lib/js_array.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "interceptors.dart";
+part of "dart:_interceptors";
 
 class _Growable {
   const _Growable();

sdk/lib/_internal/js_runtime/lib/js_number.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "interceptors.dart";
+part of "dart:_interceptors";
 
 /**
  * The super interceptor class for [JSInt] and [JSDouble]. The compiler

sdk/lib/_internal/js_runtime/lib/js_rti.dart

@@ -39,7 +39,7 @@
  *     to an array containing only null values.
  */
 
-part of "js_helper.dart";
+part of "dart:_js_helper";
 
 Type createRuntimeType(String name) {
   // Use a 'JS' cast to String.  Since this is registered as used by the

sdk/lib/_internal/js_runtime/lib/js_string.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "interceptors.dart";
+part of "dart:_interceptors";
 
 /**
  * The interceptor class for [String]. The compiler recognizes this

sdk/lib/_internal/js_runtime/lib/linked_hash_map.dart

@@ -5,7 +5,7 @@
 // Efficient JavaScript based implementation of a linked hash map used as a
 // backing map for constant maps and the [LinkedHashMap] patch
 
-part of "js_helper.dart";
+part of "dart:_js_helper";
 
 const _USE_ES6_MAPS = const bool.fromEnvironment("dart2js.use.es6.maps");
 

sdk/lib/_internal/js_runtime/lib/native_helper.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "js_helper.dart";
+part of "dart:_js_helper";
 
 // TODO(ngeoffray): stop using this method once our optimizers can
 // change str1.contains(str2) into str1.indexOf(str2) != -1.

sdk/lib/_internal/js_runtime/lib/regexp_helper.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "js_helper.dart";
+part of "dart:_js_helper";
 
 // Helper method used by internal libraries.
 regExpGetNative(JSSyntaxRegExp regexp) => regexp._nativeRegExp;

sdk/lib/_internal/js_runtime/lib/string_helper.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "js_helper.dart";
+part of "dart:_js_helper";
 
 stringIndexOfStringUnchecked(receiver, other, startIndex) {
   return JS('int', '#.indexOf(#, #)', receiver, other, startIndex);

sdk/lib/async/async_error.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 _invokeErrorHandler(
     Function errorHandler, Object error, StackTrace stackTrace) {

sdk/lib/async/broadcast_stream_controller.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 class _BroadcastStream<T> extends _ControllerStream<T> {
   _BroadcastStream(_StreamControllerLifecycle<T> controller)

sdk/lib/async/deferred_load.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 /**
  * Indicates that loading of [libraryName] is deferred.

sdk/lib/async/future.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 /// A type representing values that are either `Future<T>` or `T`.
 ///

sdk/lib/async/future_impl.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 /** The onValue and onError handlers return either a value or a future */
 typedef FutureOr<T> _FutureOnValue<S, T>(S value);

sdk/lib/async/schedule_microtask.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 typedef void _AsyncCallback();
 

sdk/lib/async/stream.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 // -------------------------------------------------------------------
 // Core Stream types

sdk/lib/async/stream_controller.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 // -------------------------------------------------------------------
 // Controller for creating and adding events to a stream.

sdk/lib/async/stream_impl.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 /** Abstract and private interface for a place to put events. */
 abstract class _EventSink<T> {

sdk/lib/async/stream_pipe.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 /** Runs user code and takes actions depending on success or failure. */
 _runUserCode<T>(

sdk/lib/async/stream_transformers.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 /**
  * Wraps an [_EventSink] so it exposes only the [EventSink] interface.

sdk/lib/async/timer.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 /**
  * A count-down timer that can be configured to fire once or repeatedly.

sdk/lib/async/zone.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "async.dart";
+part of "dart:async";
 
 typedef R ZoneCallback<R>();
 typedef R ZoneUnaryCallback<R, T>(T arg);

sdk/lib/collection/collections.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * An unmodifiable [List] view of another List.

sdk/lib/collection/hash_map.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /** Default function for equality comparison in customized HashMaps */
 bool _defaultEquals(a, b) => a == b;

sdk/lib/collection/hash_set.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /** Common parts of [HashSet] and [LinkedHashSet] implementations. */
 abstract class _HashSetBase<E> extends SetBase<E> {

sdk/lib/collection/iterable.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * This [Iterable] mixin implements all [Iterable] members except `iterator`.

sdk/lib/collection/iterator.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * The [HasNextIterator] class wraps an [Iterator] and provides methods to

sdk/lib/collection/linked_hash_map.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * A hash-table based implementation of [Map].

sdk/lib/collection/linked_hash_set.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * A [LinkedHashSet] is a hash-table based [Set] implementation.

sdk/lib/collection/linked_list.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * A specialized double-linked list of elements that extends [LinkedListEntry].

sdk/lib/collection/list.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * Abstract implementation of a list.

sdk/lib/collection/maps.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * Base class for implementing a [Map].

sdk/lib/collection/queue.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * A [Queue] is a collection that can be manipulated at both ends. One

sdk/lib/collection/set.dart

@@ -5,7 +5,7 @@
 /**
  * Base implementations of [Set].
  */
-part of "collection.dart";
+part of "dart:collection";
 
 /**
  * Mixin implementation of [Set].

sdk/lib/collection/splay_tree.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "collection.dart";
+part of "dart:collection";
 
 typedef bool _Predicate<T>(T value);
 

sdk/lib/convert/ascii.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * An instance of the default implementation of the [AsciiCodec].

sdk/lib/convert/base64.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * A [base64](https://tools.ietf.org/html/rfc4648) encoder and decoder.

sdk/lib/convert/byte_conversion.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * The [ByteConversionSink] provides an interface for converters to

sdk/lib/convert/chunked_conversion.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 typedef void _ChunkedConversionCallback<T>(T accumulated);
 

sdk/lib/convert/codec.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * A [Codec] encodes and (if supported) decodes data.

sdk/lib/convert/converter.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * A [Converter] converts data from one representation into another.

sdk/lib/convert/encoding.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * Open-ended Encoding enum.

sdk/lib/convert/html_escape.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * A `String` converter that converts characters to HTML entities.

sdk/lib/convert/json.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * Error thrown by JSON serialization if an object cannot be serialized.

sdk/lib/convert/latin1.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * An instance of the default implementation of the [Latin1Codec].

sdk/lib/convert/line_splitter.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 // Character constants.
 const int _LF = 10;

sdk/lib/convert/string_conversion.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /**
  * This class provides an interface for converters to

sdk/lib/convert/utf.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "convert.dart";
+part of "dart:convert";
 
 /** The Unicode Replacement character `U+FFFD` (<28>). */
 const int UNICODE_REPLACEMENT_CHARACTER_RUNE = 0xFFFD;

sdk/lib/core/annotations.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * The annotation `@Deprecated('expires when')` marks a feature as deprecated.

sdk/lib/core/bool.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * The reserved words [:true:] and [:false:] denote objects that are the only

sdk/lib/core/comparable.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * The signature of a generic comparison function.

sdk/lib/core/date_time.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * An instant in time, such as July 20, 1969, 8:18pm GMT.

sdk/lib/core/double.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 // TODO: Convert this abstract class into a concrete class double
 // that uses the patch class functionality to account for the

sdk/lib/core/duration.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * A span of time, such as 27 days, 4 hours, 12 minutes, and 3 seconds.

sdk/lib/core/errors.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * Error objects thrown in the case of a program failure.

sdk/lib/core/exceptions.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 // Exceptions are thrown either by the VM or from Dart code.
 

sdk/lib/core/expando.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * An [Expando] allows adding new properties to objects.

sdk/lib/core/function.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * The base class for all function types.

sdk/lib/core/identical.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * Check whether two references are to the same object.

sdk/lib/core/int.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * An arbitrarily large integer.

sdk/lib/core/invocation.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * Representation of the invocation of a member on an object.

sdk/lib/core/iterable.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * A collection of values, or "elements", that can be accessed sequentially.

sdk/lib/core/iterator.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * An interface for getting items, one at a time, from an object.

sdk/lib/core/list.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * An indexable collection of objects with a length.

sdk/lib/core/map.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * An collection of key-value pairs, from which you retrieve a value

sdk/lib/core/null.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * The reserved word [:null:] denotes an object that is the sole instance of 

sdk/lib/core/num.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * An integer or floating-point number.

sdk/lib/core/object.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * The base class for all Dart objects.

sdk/lib/core/pattern.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * An interface for basic searches within strings.

sdk/lib/core/print.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /// Prints a string representation of the object to the console.
 void print(Object object) {

sdk/lib/core/regexp.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * A regular expression pattern.

sdk/lib/core/set.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * A collection of objects in which each object can occur only once.

sdk/lib/core/sink.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * A generic destination for data.

sdk/lib/core/stacktrace.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * An interface implemented by all stack trace objects.

sdk/lib/core/stopwatch.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * A simple stopwatch interface to measure elapsed time.

sdk/lib/core/string.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * A sequence of characters.

sdk/lib/core/string_buffer.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * A class for concatenating strings efficiently.

sdk/lib/core/string_sink.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 abstract class StringSink {
   /**

sdk/lib/core/symbol.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /// Opaque name used by mirrors, invocations and [Function.apply].
 abstract class Symbol {

sdk/lib/core/type.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 /**
  * Runtime representation of a type.

sdk/lib/core/uri.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "core.dart";
+part of "dart:core";
 
 // Frequently used character codes.
 const int _SPACE = 0x20;

sdk/lib/developer/extension.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "developer.dart";
+part of "dart:developer";
 
 /// A response to a service protocol extension RPC.
 ///

sdk/lib/developer/profiler.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "developer.dart";
+part of "dart:developer";
 
 /// A UserTag can be used to group samples in the Observatory profiler.
 abstract class UserTag {

sdk/lib/developer/service.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "developer.dart";
+part of "dart:developer";
 
 /// Service protocol is the protocol that a client like the observatory
 /// could use to access the services provided by the Dart VM for

sdk/lib/developer/timeline.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "developer.dart";
+part of "dart:developer";
 
 const bool _isProduct = const bool.fromEnvironment("dart.vm.product");
 

sdk/lib/html/html_common/conversions.dart

@@ -25,7 +25,7 @@
 // We omit an unwrapper for Window as no methods take a non-local
 // window as a parameter.
 
-part of html_common;
+part of "dart:html_common";
 
 /// Converts a Dart value into a JavaScript SerializedScriptValue.
 convertDartToNative_SerializedScriptValue(value) {

sdk/lib/html/html_common/conversions_dart2js.dart

@@ -1,4 +1,4 @@
-part of "html_common_dart2js.dart";
+part of "dart:html_common";
 
 /// Converts a JavaScript object with properties into a Dart Map.
 /// Not suitable for nested objects.

sdk/lib/html/html_common/conversions_dartium.dart

@@ -1,4 +1,4 @@
-part of "html_common.dart";
+part of "dart:html_common";
 
 convertDartToNative_PrepareForStructuredClone(value) =>
     new _StructuredCloneDartium()

sdk/lib/html/html_common/css_class_set.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of html_common;
+part of "dart:html_common";
 
 abstract class CssClassSetImpl implements CssClassSet {
   static final RegExp _validTokenRE = new RegExp(r'^\S+$');

sdk/lib/html/html_common/device.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of html_common;
+part of "dart:html_common";
 
 /**
  * Utils for device detection.

sdk/lib/html/html_common/filtered_element_list.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of html_common;
+part of "dart:html_common";
 
 /**
  * An indexable collection of a node's direct descendants in the document tree,

sdk/lib/html/html_common/lists.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of html_common;
+part of "dart:html_common";
 
 class Lists {
   /**

sdk/lib/internal/iterable.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "internal.dart";
+part of "dart:_internal";
 
 /**
  * Marker interface for [Iterable] subclasses that have an efficient

sdk/lib/internal/list.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "internal.dart";
+part of "dart:_internal";
 
 /**
  * Mixin that throws on the length changing operations of [List].

sdk/lib/internal/print.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "internal.dart";
+part of "dart:_internal";
 
 /**
  * This function is set by the first allocation of a Zone.

sdk/lib/internal/sort.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "internal.dart";
+part of "dart:_internal";
 
 /**
  * Dual-Pivot Quicksort algorithm.

sdk/lib/internal/symbol.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "internal.dart";
+part of "dart:_internal";
 
 /**
  * Implementation of [core.Symbol].  This class uses the same name as

sdk/lib/io/bytes_builder.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of "io.dart";
+part of "dart:io";
 
 /**
  * Builds a list of bytes, allowing bytes and lists of bytes to be added at the