Format all tests.

tests/language_strong/constructor2_test.dart

Index: tests/language_strong/constructor2_test.dart
diff --git a/tests/language_strong/constructor2_test.dart b/tests/language_strong/constructor2_test.dart
index f6050a514040db7e12e6837038a7d7740a46f563..7a13045eff3be43a7879ede5aae26da5d867a1e3 100644
--- a/tests/language_strong/constructor2_test.dart
+++ b/tests/language_strong/constructor2_test.dart
@@ -29,7 +29,10 @@ class A {
 class B extends A {
   var b1, b2;
 
-  B(x) : b1 = E(1), super(E(2), E(3)), b2 = E(5) {
+  B(x)
+      : b1 = E(1),
+        super(E(2), E(3)),
+        b2 = E(5) {
     Expect.equals(1, b1);
     Expect.equals(5, b2);
     E(7);