Implement type arguments in redirecting factories.

pkg/front_end/lib/src/fasta/kernel/kernel_class_builder.dart

Index: pkg/front_end/lib/src/fasta/kernel/kernel_class_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/kernel/kernel_class_builder.dart b/pkg/front_end/lib/src/fasta/kernel/kernel_class_builder.dart
index 5fa55bcbbc6fb585fdc88551ce80eb88167c7344..7e821365e698027c2de042914fc800e87390cf4b 100644
--- a/pkg/front_end/lib/src/fasta/kernel/kernel_class_builder.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/kernel_class_builder.dart
@@ -43,6 +43,7 @@ import 'kernel_builder.dart'
         ClassBuilder,
         ConstructorReferenceBuilder,
         KernelLibraryBuilder,
+        KernelNamedTypeBuilder,
         KernelProcedureBuilder,
         KernelTypeBuilder,
         LibraryBuilder,
@@ -133,11 +134,18 @@ abstract class KernelClassBuilder
             assert(builder.actualBody == null);
             Builder targetBuilder = redirectionTarget.target;
             addRedirectingConstructor(builder, library);
+            Member target;
             if (targetBuilder is ProcedureBuilder) {
-              Member target = targetBuilder.target;
-              builder.body = new RedirectingFactoryBody(target);
+              target = targetBuilder.target;
             } else if (targetBuilder is DillMemberBuilder) {
-              builder.body = new RedirectingFactoryBody(targetBuilder.member);
+              target = targetBuilder.member;
+            }
+            if (target != null) {
+              builder.body = new RedirectingFactoryBody(
+                  target,
+                  new KernelNamedTypeBuilder.fromConstructorReference(
+                          redirectionTarget)
+                      .build(library));
             } else {
               var message = templateRedirectionTargetNotFound
                   .withArguments(redirectionTarget.fullNameForErrors);