Properly emit and rename generic types.

lib/compiler/implementation/dart_backend/renamer.dart

Index: lib/compiler/implementation/dart_backend/renamer.dart
diff --git a/lib/compiler/implementation/dart_backend/renamer.dart b/lib/compiler/implementation/dart_backend/renamer.dart
index 794f6b05e785a0c91428f807fe33d8a448f1d03b..9ee2571c25bed3294ce6c6f285e4e2a407253a57 100644
--- a/lib/compiler/implementation/dart_backend/renamer.dart
+++ b/lib/compiler/implementation/dart_backend/renamer.dart
@@ -43,8 +43,19 @@ class ConflictingRenamer extends Renamer {
         // Don't want to rename super calls.
         && !Initializers.isSuperConstructorCall(send)) {
       FunctionExpression constructor = element.asFunctionElement().cachedNode;
-      return '${renameType(element.getEnclosingClass().type)}'
-          '.${getFactoryName(constructor)}';
+      TypeAnnotation typeAnnotation;
+      if (send.selector is TypeAnnotation) {

[Roman, 2012/07/31 15:35:39]

Please add comments for these ifs about what original source structure we have
here and why we select receiver or selector for further unparse.

[Anton Muhin, 2012/07/31 15:46:47]

Done.

+        typeAnnotation = send.selector;
+      } else if (send.selector.receiver is TypeAnnotation) {
+        typeAnnotation = send.selector.receiver;
+      } else {
+        compiler.cancel(
+          reason: "Don't know how to deduce type",
+          element: element,
+          node: send);
+      }
+      final type = new Unparser(this).unparse(typeAnnotation);
+      return '$type.${getFactoryName(constructor)}';
     } else {
       return null;
     }