Format all tests.

tests/language/issue12284_test.dart

Index: tests/language/issue12284_test.dart
diff --git a/tests/language/issue12284_test.dart b/tests/language/issue12284_test.dart
index efb5883135765c3c1d50fefd07201f1c1d6a42b7..62d7b881c7c905f32631cb9c45011e00d6faceec 100644
--- a/tests/language/issue12284_test.dart
+++ b/tests/language/issue12284_test.dart
@@ -11,7 +11,7 @@ class A {
   @DontInline()
   A(param) {
     // Currently defeat inlining by using a closure.
-    var bar = () => 42;     
+    var bar = () => 42;
     field = param + 42;
   }
   A.redirect() : this('foo');
@@ -19,6 +19,6 @@ class A {
 
 main() {
   Expect.equals(42 + 42, new A(42).field);
-  Expect.throws(() => new A.redirect(),
-                (e) => e is ArgumentError || e is TypeError);
+  Expect.throws(
+      () => new A.redirect(), (e) => e is ArgumentError || e is TypeError);
 }