Run dartfmt on kernel package

pkg/kernel/testcases/input/argument.dart

Index: pkg/kernel/testcases/input/argument.dart
diff --git a/pkg/kernel/testcases/input/argument.dart b/pkg/kernel/testcases/input/argument.dart
index 505272147c78b4a9ee2a8e440d142a990ec24f92..db3906362b571ac4d69e2197be60321a239e8c9b 100644
--- a/pkg/kernel/testcases/input/argument.dart
+++ b/pkg/kernel/testcases/input/argument.dart
@@ -1,24 +1,18 @@
 abstract class Base {}
 
 class Foo extends Base {}
-class Bar extends Base {}
-class Baz extends Base {}
-
-void foo(x) {
-
-}
 
-void bar(x) {
+class Bar extends Base {}
 
-}
+class Baz extends Base {}
 
-void foo_escaped(x) {
+void foo(x) {}
 
-}
+void bar(x) {}
 
-void bar_escaped(x) {
+void foo_escaped(x) {}
 
-}
+void bar_escaped(x) {}
 
 void escape(fn) {
   fn(new Baz());