Run formatter on a few frontend and kernel files that hadn't been formatted.

pkg/front_end/testcases/rasta/generic_factory.dart

Index: pkg/front_end/testcases/rasta/generic_factory.dart
diff --git a/pkg/front_end/testcases/rasta/generic_factory.dart b/pkg/front_end/testcases/rasta/generic_factory.dart
index d2eea56176584cdb30275983b063b85a6e491700..2bac5a2568db9d2e257edaa5fb384ecfd1825f73 100644
--- a/pkg/front_end/testcases/rasta/generic_factory.dart
+++ b/pkg/front_end/testcases/rasta/generic_factory.dart
@@ -2,14 +2,11 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE.md file.
 
-class C1 {
-}
+class C1 {}
 
-class C2 {
-}
+class C2 {}
 
-class C3 {
-}
+class C3 {}
 
 class A<T> {
   A.internal();
@@ -20,16 +17,14 @@ class A<T> {
 }
 
 class B<S> extends A<S> {
-  B.internal()
-      : super.internal();
+  B.internal() : super.internal();
 
   factory B.a() = C<S>;
   factory B.b() = C<C2>;
 }
 
 class C<U> extends B<U> {
-  C()
-      : super.internal();
+  C() : super.internal();
 }
 
 main() {