Add Resolution and Parsing interfaces for computeType, ensureResolved and parseNode.

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

 // Copyright (c) 2012, 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.common.resolution;
 
 import '../compiler.dart' show
     Compiler;
+import '../core_types.dart' show
+    CoreTypes;
 import '../dart_types.dart' show
     DartType;
+import '../diagnostics/diagnostic_listener.dart' show
+    DiagnosticListener;
 import '../elements/elements.dart' show
     AstElement,
+    ClassElement,
+    Element,
     ErroneousElement,
+    FunctionElement,
+    FunctionSignature,
+    MetadataAnnotation,
+    TypedefElement,
     TypeVariableElement;
 import '../enqueue.dart' show
     ResolutionEnqueuer,
     WorldImpact;
 import '../tree/tree.dart' show
     AsyncForIn,
-    Send;
+    Send,
+    TypeAnnotation;
 import 'registry.dart' show
     Registry;
 import 'work.dart' show
     ItemCompilationContext,
     WorkItem;
 
 /// [WorkItem] used exclusively by the [ResolutionEnqueuer].
 class ResolutionWorkItem extends WorkItem {
   bool _isAnalyzed = false;
 
@@ skipping 82 matching lines @@
 
   /// Register that the application creates a constant map.
   void onMapLiteral(Registry registry, DartType type, bool isConstant) {}
 
   /// Called when resolving the `Symbol` constructor.
   void onSymbolConstructor(Registry registry) {}
 
   /// Called when resolving a prefix or postfix expression.
   void onIncDecOperation(Registry registry) {}
 }
+
+abstract class Resolution {

[sigurdm, 2015/10/01 08:54:13]

Perhaps `Resolver`

[Johnni Winther, 2015/10/01 09:33:52]

Added a TODO.

+  Parsing get parsing;
+  DiagnosticListener get listener;
+  CoreTypes get coreTypes;
+
+  void resolveTypedef(TypedefElement typdef);
+  void resolveClass(ClassElement cls);
+  void registerClass(ClassElement cls);
+  void resolveMetadataAnnotation(MetadataAnnotation metadataAnnotation);
+  FunctionSignature resolveSignature(FunctionElement function);
+  DartType resolveTypeAnnotation(Element element, TypeAnnotation node);
+}
+
+abstract class Parsing {

[sigurdm, 2015/10/01 08:54:13]

Perhaps `ParsingContext`

[Johnni Winther, 2015/10/01 09:33:53]

Added a TODO.

+  DiagnosticListener get listener;
+  void parsePatchClass(ClassElement cls);
+  measure(f());
+}