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

pkg/compiler/lib/src/js_backend/lookup_map_analysis.dart

 // Copyright (c) 2015, 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.
 
 /// Analysis to determine how to generate code for `LookupMap`s.
 library compiler.src.js_backend.lookup_map_analysis;
 
 import '../common/registry.dart' show Registry;
 import '../compiler.dart' show Compiler;
 import '../diagnostics/messages.dart' show MessageKind;
@@ skipping 156 matching lines @@
       version = new Version.parse(value.primitiveValue.slowToString());
     } catch (e) {}
 
     if (version == null || !_validLookupMapVersionConstraint.allows(version)) {
       backend.compiler.reportInfo(lookupMapVersionVariable,
           MessageKind.UNRECOGNIZED_VERSION_OF_LOOKUP_MAP);
       return;
     }
 
     ClassElement cls = lookupMapLibrary.findLocal('LookupMap');
-    cls.computeType(backend.compiler);
+    cls.computeType(backend.resolution);
     entriesField = cls.lookupMember('_entries');
     keyField = cls.lookupMember('_key');
     valueField = cls.lookupMember('_value');
     // TODO(sigmund): Maybe inline nested maps to make the output code smaller?
     typeLookupMapClass = cls;
   }
 
   /// Whether [constant] is an instance of a `LookupMap`.
   bool isLookupMap(ConstantValue constant) =>
       _isEnabled &&
@@ skipping 242 matching lines @@
       }
     } else {
       original.fields[analysis.entriesField] =
           new ListConstantValue(listType, keyValuePairs);
     }
   }
 }
 
 final _validLookupMapVersionConstraint =
     new VersionConstraint.parse('^0.0.1');