Remove LibraryEntity.libraryName

pkg/compiler/lib/src/kernel/world_builder.dart

 // Copyright (c) 2017, 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.
 
 import 'package:kernel/ast.dart' as ir;
 
 import '../common.dart';
 import '../common/names.dart';
 import '../core_types.dart';
 import '../elements/elements.dart';
@@ skipping 42 matching lines @@
   CommonElements get commonElements => _commonElements;
 
   LibraryEntity lookupLibrary(Uri uri) {
     KLibraryEnv libraryEnv = _env.lookupLibrary(uri);
     return _getLibrary(libraryEnv.library, libraryEnv);
   }
 
   KLibrary _getLibrary(ir.Library node, [KLibraryEnv libraryEnv]) {
     return _libraryMap.putIfAbsent(node, () {
       _libraryEnvs.add(libraryEnv ?? _env.lookupLibrary(node.importUri));
-      return new KLibrary(_libraryMap.length, node.name ?? '${node.importUri}',
-          node.name ?? node.fileUri ?? '${node.importUri}');
+      String name = node.name;
+      if (name == null) {
+        // Use the file name as script name.
+        String path = node.importUri.path;
+        name = path.substring(path.lastIndexOf('/') + 1);
+      }
+      return new KLibrary(_libraryMap.length, name);
     });
   }
 
   ClassEntity lookupClass(KLibrary library, String name) {
     KLibraryEnv libraryEnv = _libraryEnvs[library.libraryIndex];
     KClassEnv classEnv = libraryEnv.lookupClass(name);
     return _getClass(classEnv.cls, classEnv);
   }
 
   KClass _getClass(ir.Class node, [KClassEnv classEnv]) {
@@ skipping 421 matching lines @@
     }
     return builder._getLibrary(library);
   }
 
   KLibrary getLibraryForFunction(KFunction function) =>
       _getLibrary(function, builder._methodMap);
 
   KLibrary getLibraryForField(KField field) =>
       _getLibrary(field, builder._fieldMap);
 }