Support type variables on redirecting factory constructors.

sdk/lib/_internal/compiler/implementation/elements/elements.dart

Index: sdk/lib/_internal/compiler/implementation/elements/elements.dart
diff --git a/sdk/lib/_internal/compiler/implementation/elements/elements.dart b/sdk/lib/_internal/compiler/implementation/elements/elements.dart
index bd1fac27c4711b46bd10e9ba0ecdd2e11f758774..c3e0dbda17d78e4dfd1ec7b8681d8fb66125f078 100644
--- a/sdk/lib/_internal/compiler/implementation/elements/elements.dart
+++ b/sdk/lib/_internal/compiler/implementation/elements/elements.dart
@@ -721,6 +721,8 @@ abstract class FunctionSignature {
   void forEachOptionalParameter(void function(Element parameter));
 
   void orderedForEachParameter(void function(Element parameter));
+
+  bool isCompatibleWith(FunctionSignature constructorSignature);
 }
 
 abstract class FunctionElement extends Element {
@@ -733,6 +735,8 @@ abstract class FunctionElement extends Element {
   FunctionElement get patch;
   FunctionElement get origin;
 
+  bool get isRedirection;

[ngeoffray, 2013/05/30 11:57:23]

isRedirection -> isRedirectingFactory ?

[karlklose, 2013/05/30 12:24:41]

Done.

+
   // TODO(kasperl): These are bit fishy. Do we really need them?
   void set patch(FunctionElement value);
   void set origin(FunctionElement value);