Support optional package name arguments to --show-package-warnings

pkg/compiler/lib/src/parser/partial_elements.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.
 
 library dart2js.parser.partial_elements;
 
 import '../common.dart';
 import '../common/resolution.dart' show
     Parsing,
     Resolution;
@@ skipping 279 matching lines @@
       }
     });
     return definitions;
   }
 
   computeType(Element element, Resolution resolution) {
     if (type != null) return type;
     // TODO(johnniwinther): Compute this in the resolver.
     VariableDefinitions node = parseNode(element, resolution.parsing);
     if (node.type != null) {
-      type = resolution.resolveTypeAnnotation(element, node.type);
+      type = resolution.reporter.withCurrentElement(element, () {
+        return resolution.resolveTypeAnnotation(element, node.type);
+      });
     } else {
       type = const DynamicType();
     }
     assert(type != null);
     return type;
   }
 }
 
 class PartialTypedefElement extends TypedefElementX with PartialElement {
 
@@ skipping 182 matching lines @@
       } on ParserError catch (e) {
         partial.hasParseError = true;
         return new ErrorNode(element.position, e.reason);
       }
       Node node = listener.popNode();
       assert(listener.nodes.isEmpty);
       return node;
     });
   });
 }