Introduce LibraryEntity

pkg/compiler/lib/src/elements/entities.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 library entities;
 
 import 'elements.dart' show Entity;
 
+/// Stripped down super interface for library like entities.
+///
+/// Currently only [LibraryElement] but later also kernel based Dart classes
+/// and/or Dart-in-JS classes.
+abstract class LibraryEntity extends Entity {
+  String get libraryName;

[Siggi Cherem (dart-lang), 2017/01/12 00:00:33]

I wonder if we actually ever want the libraryName in the entity, or just the URI

[Johnni Winther, 2017/01/12 12:29:05]

We don't. I'd rather use [name] but it has different semantics currently.

[Siggi Cherem (dart-lang), 2017/01/12 18:36:53]

is the idea then to remove this field and change it to [uri]? should we mark it
with a comment/TODO/@deprecated?

[Johnni Winther, 2017/01/13 08:27:14]

Will do.

+}
+
 /// Stripped down super interface for class like entities.
 ///
 /// Currently only [ClassElement] but later also kernel based Dart classes
 /// and/or Dart-in-JS classes.
 abstract class ClassEntity extends Entity {
   bool get isClosure;
 }
 
 abstract class TypeVariableEntity extends Entity {
   Entity get typeDeclaration;
@@ skipping 19 matching lines @@
 ///
 /// Currently only [FieldElement] but later also kernel based Dart fields
 /// and/or Dart-in-JS field-like properties.
 abstract class FieldEntity extends MemberEntity {}
 
 /// Stripped down super interface for function like entities.
 ///
 /// Currently only [FieldElement] but later also kernel based Dart constructors
 /// and methods and/or Dart-in-JS function-like properties.
 abstract class FunctionEntity extends MemberEntity {}