Split resolution into several libraries.

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

Index: pkg/compiler/lib/src/resolution/registry.dart
diff --git a/pkg/compiler/lib/src/resolution/registry.dart b/pkg/compiler/lib/src/resolution/registry.dart
index 941fb38550d1c48d860c3dcd4267fb632fd5369a..28a7ed3be224c0542cd2bac58f347aad672e25fb 100644
--- a/pkg/compiler/lib/src/resolution/registry.dart
+++ b/pkg/compiler/lib/src/resolution/registry.dart
@@ -2,7 +2,39 @@
 // 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 resolution;
+library dart2js.resolution.registry;
+
+import '../common/backend_api.dart' show
+    Backend;
+import '../common/registry.dart' show
+    Registry;
+import '../compiler.dart' show
+    Compiler,
+    isPrivateName;
+import '../constants/expressions.dart';
+import '../dart_types.dart';
+import '../diagnostics/invariant.dart' show
+    invariant;
+import '../enqueue.dart' show
+    ResolutionEnqueuer,
+    WorldImpact;
+import '../elements/elements.dart';
+import '../tree/tree.dart';
+import '../util/util.dart' show
+    Setlet;
+import '../universe/universe.dart' show
+    CallStructure,
+    Selector,
+    SelectorKind,
+    UniverseSelector;
+import '../world.dart' show World;
+
+import 'send_structure.dart';
+
+import 'members.dart' show
+    ResolverVisitor;
+import 'tree_elements.dart' show
+    TreeElementMapping;
 
 /// [ResolutionRegistry] collects all resolution information. It stores node
 /// related information in a [TreeElements] mapping and registers calls with
@@ -174,10 +206,7 @@ class ResolutionRegistry implements Registry {
   final TreeElementMapping mapping;
   final ResolutionWorldImpact worldImpact;
 
-  ResolutionRegistry(Compiler compiler, Element element)
-      : this.internal(compiler, _ensureTreeElements(element));
-
-  ResolutionRegistry.internal(Compiler compiler, TreeElementMapping mapping)
+  ResolutionRegistry(Compiler compiler, TreeElementMapping mapping)
       : this.compiler = compiler,
         this.mapping = mapping,
         this.worldImpact = new ResolutionWorldImpact(compiler, mapping);