Format all tests.

tests/language/super_abstract_method_test.dart

Index: tests/language/super_abstract_method_test.dart
diff --git a/tests/language/super_abstract_method_test.dart b/tests/language/super_abstract_method_test.dart
index b501b7f47c4c2adaba37d0f8a97fc3ff8482b4fa..19c877ab2242f827aba03ede1de526adc519f671 100644
--- a/tests/language/super_abstract_method_test.dart
+++ b/tests/language/super_abstract_method_test.dart
@@ -17,7 +17,8 @@ abstract class A extends Base {
 
 class B extends A {
   testSuperCall() => super.foo();
-  foo() => 42; // required since if is removed, then a warning is introduced on 'B' above
+  foo() =>
+      42; // required since if is removed, then a warning is introduced on 'B' above
 }
 
 main() {