Format all tests.

tests/language/constructor12_test.dart

Index: tests/language/constructor12_test.dart
diff --git a/tests/language/constructor12_test.dart b/tests/language/constructor12_test.dart
index 28539921b55d90bfe97e92ea76cb3acfb16b57e2..81b2525cb0abc3e29032c1e6589bf5d044141407 100644
--- a/tests/language/constructor12_test.dart
+++ b/tests/language/constructor12_test.dart
@@ -16,9 +16,11 @@ class A<T> extends B {
   var typedList;
 
   // p must be inside a box (in dart2js).
-  A(p) : captured = (() => p), super(p++) {
+  A(p)
+      : captured = (() => p),
+        super(p++) {
     // Make non-inlinable.
-    try {} catch(e) {}
+    try {} catch (e) {}
 
     captured2 = () => p++;