Move computeType to TypedElement and TypeDeclarationElement.

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 6957cecf4280d219768b4d5dac82dbeb65d9b4cb..ac4b753d8b81693bf3344c8609d2c8961694f534 100644
--- a/pkg/compiler/lib/src/patch_parser.dart
+++ b/pkg/compiler/lib/src/patch_parser.dart
@@ -125,10 +125,12 @@ import 'dart2jslib.dart'
          Script;
 import 'elements/elements.dart';
 import 'elements/modelx.dart'
-    show LibraryElementX,
-         MetadataAnnotationX,
+    show BaseFunctionElementX,
          ClassElementX,
-         BaseFunctionElementX;
+         GetterElementX,
+         LibraryElementX,
+         MetadataAnnotationX,
+         SetterElementX;
 import 'helpers/helpers.dart';  // Included for debug helpers.
 import 'library_loader.dart' show LibraryLoader;
 import 'scanner/scannerlib.dart';  // Scanner, Parsers, Listeners
@@ -484,7 +486,8 @@ void tryPatchGetter(DiagnosticListener listener,
         MessageKind.PATCH_POINT_TO_GETTER, {'getterName': patch.name});
     return;
   }
-  patchFunction(listener, originField.getter, patch);
+  GetterElementX getter = originField.getter;
+  patchFunction(listener, getter, patch);
 }
 
 void tryPatchSetter(DiagnosticListener listener,
@@ -507,7 +510,8 @@ void tryPatchSetter(DiagnosticListener listener,
         MessageKind.PATCH_POINT_TO_SETTER, {'setterName': patch.name});
     return;
   }
-  patchFunction(listener, originField.setter, patch);
+  SetterElementX setter = originField.setter;
+  patchFunction(listener, setter, patch);
 }
 
 void tryPatchConstructor(DiagnosticListener listener,