Re-land "Format all multitests"

tests/language_strong/const_constructor_super_test.dart

Index: tests/language_strong/const_constructor_super_test.dart
diff --git a/tests/language_strong/const_constructor_super_test.dart b/tests/language_strong/const_constructor_super_test.dart
index 2b5adb30418aebe4a9eb155840129fa844074085..b8bb9e206291644c6442f60f933f4671ead6cc0f 100644
--- a/tests/language_strong/const_constructor_super_test.dart
+++ b/tests/language_strong/const_constructor_super_test.dart
@@ -6,13 +6,15 @@ import "package:expect/expect.dart";
 
 class A {
   final a;
-  A(this.a);  // Not const.
+  A(this.a); // Not const.
   const A.five() : a = 5;
 }
 
 class B extends A {
   final b;
-  B(x) : b = x + 1, super(x);
+  B(x)
+      : b = x + 1,
+        super(x);
 
   // Const constructor cannot call non-const super constructor.
   const B.zerofive() : b = 0, super(5); // //# 01: compile-time error