Implement type arguments in redirecting factories.

pkg/front_end/testcases/rasta/generic_factory.dart.outline.expect

Index: pkg/front_end/testcases/rasta/generic_factory.dart.outline.expect
diff --git a/pkg/front_end/testcases/rasta/generic_factory.dart.outline.expect b/pkg/front_end/testcases/rasta/generic_factory.dart.outline.expect
index 5da78bb877db5707a12b2a5e3d827a03bcefc2a6..7ebbf71840be2c0cc21910e328658bfa752bc0e7 100644
--- a/pkg/front_end/testcases/rasta/generic_factory.dart.outline.expect
+++ b/pkg/front_end/testcases/rasta/generic_factory.dart.outline.expect
@@ -19,20 +19,20 @@ class A<T extends core::Object> extends core::Object {
   constructor internal() → void
     ;
   static factory a<T extends core::Object>() → self::A<self::A::a::T>
-    let dynamic #redirecting_factory = self::B::a in invalid-expression;
+    let self::B<self::A::a::T> #redirecting_factory = self::B::a in invalid-expression;
   static factory b<T extends core::Object>() → self::A<self::A::b::T>
-    let dynamic #redirecting_factory = self::B::a in invalid-expression;
+    let self::B<self::C1> #redirecting_factory = self::B::a in invalid-expression;
   static factory c<T extends core::Object>() → self::A<self::A::c::T>
-    let dynamic #redirecting_factory = "Missing" in invalid-expression;
+    let invalid-type #redirecting_factory = "Missing" in invalid-expression;
 }
 class B<S extends core::Object> extends self::A<self::B::S> {
   static field dynamic _redirecting# = <dynamic>[self::B::a, self::B::b];
   constructor internal() → void
     ;
   static factory a<S extends core::Object>() → self::B<self::B::a::S>
-    let dynamic #redirecting_factory = self::C::• in invalid-expression;
+    let self::C<self::B::a::S> #redirecting_factory = self::C::• in invalid-expression;
   static factory b<S extends core::Object>() → self::B<self::B::b::S>
-    let dynamic #redirecting_factory = self::C::• in invalid-expression;
+    let self::C<self::C2> #redirecting_factory = self::C::• in invalid-expression;
 }
 class C<U extends core::Object> extends self::B<self::C::U> {
   constructor •() → void