Format all tests.

tests/language/initializing_formal_final_test.dart

Index: tests/language/initializing_formal_final_test.dart
diff --git a/tests/language/initializing_formal_final_test.dart b/tests/language/initializing_formal_final_test.dart
index 9cda9feb6303d388f71ae54bf602b4c8c51a3089..bccab6d9c3c256f6f607d182d11caa72a06a9846 100644
--- a/tests/language/initializing_formal_final_test.dart
+++ b/tests/language/initializing_formal_final_test.dart
@@ -8,7 +8,10 @@ class A {
   var x, y;
   // This should cause a warning because `x` is final when
   // accessed as an initializing formal.
-  A(this.x) : y = (() { x = 3; });
+  A(this.x)
+      : y = (() {
+          x = 3;
+        });
 }
 
 main() {