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

pkg/compiler/lib/src/patch_parser.dart

Index: pkg/compiler/lib/src/patch_parser.dart
diff --git a/pkg/compiler/lib/src/patch_parser.dart b/pkg/compiler/lib/src/patch_parser.dart
index 8eb9f852da2687f9cb11ecaa66672d408b35ff09..a2ec63cf7006cdbfc964892a24ed6e9844cfe6db 100644
--- a/pkg/compiler/lib/src/patch_parser.dart
+++ b/pkg/compiler/lib/src/patch_parser.dart
@@ -154,7 +154,6 @@ import 'script.dart';
 import 'tokens/token.dart' show
     StringToken,
     Token;
-import 'util/util.dart';
 
 class PatchParserTask extends CompilerTask {
   final String name = "Patching Parser";
@@ -399,7 +398,7 @@ abstract class EagerAnnotationHandler<T> {
         // TODO(johnniwinther): Perform this check in
         // [Compiler.onLibrariesLoaded].
         compiler.enqueuer.resolution.addDeferredAction(element, () {
-          annotation.ensureResolved(compiler);
+          annotation.ensureResolved(compiler.resolution);
           handler.validate(
               compiler, element, annotation,
               compiler.constants.getConstantValue(annotation.constant));