Compute all canonical names only for libraries being serialized.

pkg/kernel/lib/binary/limited_ast_to_binary.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';
 import 'package:kernel/binary/ast_to_binary.dart';
 
 /// Writes libraries that satisfy the [predicate].
 ///
 /// Only the referenced subset of canonical names is indexed and written,
 /// so we don't waste time indexing all libraries of a program, when only
 /// a tiny subset is used.
 class LimitedBinaryPrinter extends BinaryPrinter {
   final LibraryFilter predicate;
 
   LimitedBinaryPrinter(Sink<List<int>> sink, this.predicate)
       : super(sink, stringIndexer: new ReferencesStringIndexer());
 
   @override
+  void computeCanonicalNames(Program program) {
+    for (var library in program.libraries) {
+      if (predicate(library)) {
+        program.root
+            .getChildFromUri(library.importUri)
+            .bindTo(library.reference);
+        library.computeCanonicalNames();
+      }
+    }
+  }
+
+  @override
   void addCanonicalNamesForLinkTable(List<CanonicalName> list) {
     ReferencesStringIndexer stringIndexer = this.stringIndexer;
     stringIndexer.referencedNames.forEach((name) {
       if (name.index != -1) return;
       name.index = list.length;
       list.add(name);
     });
   }
 
   @override
@@ skipping 74 matching lines @@
   }
 
   void _handleReferencedName(CanonicalName name) {
     if (name == null || name.parent == null) return;
     _handleReferencedName(name.parent);
     referencedNames.add(name);
     name.index = -1;
     put(name.name);
   }
 }