Compute ResolutionImpact directly from kernel, part 1 of ?

pkg/compiler/lib/src/resolution/registry.dart

 // Copyright (c) 2014, 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 dart2js.resolution.registry;
 
 import '../common.dart';
 import '../common/backend_api.dart'
     show Backend, ForeignResolver, NativeRegistry;
 import '../common/registry.dart' show Registry;
 import '../common/resolution.dart' show ResolutionImpact, Target;
 import '../constants/expressions.dart';
 import '../dart_types.dart';
 import '../diagnostics/source_span.dart';
 import '../elements/elements.dart';
 import '../tree/tree.dart';
 import '../universe/call_structure.dart' show CallStructure;
 import '../universe/feature.dart';
 import '../universe/selector.dart' show Selector;
 import '../universe/use.dart' show DynamicUse, StaticUse, TypeUse;
 import '../universe/world_impact.dart' show WorldImpact, WorldImpactBuilder;
 import '../util/enumset.dart' show EnumSet;
 import '../util/util.dart' show Setlet;
 import 'members.dart' show ResolverVisitor;
 import 'send_structure.dart';
 import 'tree_elements.dart' show TreeElementMapping;
 
-class _ResolutionWorldImpact extends ResolutionImpact
+class ResolutionWorldImpactBuilder extends ResolutionImpact
     with WorldImpactBuilder
     implements NativeRegistry {
   final String name;
   EnumSet<Feature> _features;
   Setlet<MapLiteralUse> _mapLiterals;
   Setlet<ListLiteralUse> _listLiterals;
   Setlet<String> _constSymbolNames;
   Setlet<ConstantExpression> _constantLiterals;
   Setlet<dynamic> _nativeData;
 
-  _ResolutionWorldImpact(this.name);
+  ResolutionWorldImpactBuilder(this.name);
 
   void registerMapLiteral(MapLiteralUse mapLiteralUse) {
     assert(mapLiteralUse != null);
     if (_mapLiterals == null) {
       _mapLiterals = new Setlet<MapLiteralUse>();
     }
     _mapLiterals.add(mapLiteralUse);
   }
 
   @override
@@ skipping 101 matching lines @@
   }
 }
 
 /// [ResolutionRegistry] collects all resolution information. It stores node
 /// related information in a [TreeElements] mapping and registers calls with
 /// [Backend], [World] and [Enqueuer].
 // TODO(johnniwinther): Split this into an interface and implementation class.
 class ResolutionRegistry extends Registry {
   final Target target;
   final TreeElementMapping mapping;
-  final _ResolutionWorldImpact worldImpact;
+  final ResolutionWorldImpactBuilder worldImpact;

[Harry Terkelsen, 2016/09/08 16:46:28]

also change variable name to worldImpactBuilder or impactBuilder

 
   ResolutionRegistry(this.target, TreeElementMapping mapping)
       : this.mapping = mapping,
-        this.worldImpact =
-            new _ResolutionWorldImpact(mapping.analyzedElement.toString());
+        this.worldImpact = new ResolutionWorldImpactBuilder(
+            mapping.analyzedElement.toString());
 
   bool get isForResolution => true;
 
   String toString() => 'ResolutionRegistry for ${mapping.analyzedElement}';
 
   //////////////////////////////////////////////////////////////////////////////
   //  Node-to-Element mapping functionality.
   //////////////////////////////////////////////////////////////////////////////
 
   /// Register [node] as the declaration of [element].
@@ skipping 246 matching lines @@
   @override
   void registerInstantiatedType(InterfaceType type) {
     registry.registerInstantiation(type);
   }
 
   @override
   DartType resolveTypeFromString(Node node, String typeName) {
     return visitor.resolveTypeFromString(node, typeName);
   }
 }