dart2dart Fix collecting type of class fields

lib/compiler/implementation/dart_backend/backend.dart

Index: lib/compiler/implementation/dart_backend/backend.dart
diff --git a/lib/compiler/implementation/dart_backend/backend.dart b/lib/compiler/implementation/dart_backend/backend.dart
index 5a9e0e770c95710c926f309d4e193e0ef1aea53e..1e0414187b00d048ec141f5eb0bec015f1c435a6 100644
--- a/lib/compiler/implementation/dart_backend/backend.dart
+++ b/lib/compiler/implementation/dart_backend/backend.dart
@@ -138,7 +138,7 @@ bool isDartCoreLib(Compiler compiler, LibraryElement libraryElement) {
  */
 class ReferencedElementCollector extends AbstractVisitor {
   final Compiler compiler;
-  final Element rootElement;
+  Element rootElement;
   final TreeElements treeElements;
   final newTypedefElementCallback;
   final newClassElementCallback;
@@ -171,6 +171,9 @@ class ReferencedElementCollector extends AbstractVisitor {
   }
 
   void collect() {
+    if (rootElement is VariableElement) {

[Anton Muhin, 2012/08/16 16:27:47]

let's do that in ctor or in caller, ok?

[Roman, 2012/08/16 16:33:54]

Done. Ternary expression in initializer does not look very nice, but element is
final.

[Anton Muhin, 2012/08/16 16:35:51]

Caller might be the better place, but up to you

On 2012/08/16 16:33:54, Roman wrote:

+      rootElement = (rootElement as VariableElement).variables;
+    }
     compiler.withCurrentElement(rootElement, () {
       rootElement.parseNode(compiler).accept(this);
     });