Format all tests.

tests/language/param2_test.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 // Dart test program for testing function type parameters.
 
 import "package:expect/expect.dart";
 
-
 class Param2Test {
-
   static forEach(List<int> a, int f(k)) {
     for (int i = 0; i < a.length; i++) {
       a[i] = f(a[i]);
     }
   }
 
   static int apply(f(int k), int arg) {
     var res = f(arg);
     return res;
   }
 
   static exists(List<int> a, f(e)) {
     for (int i = 0; i < a.length; i++) {
       if (f(a[i])) return true;
     }
     return false;
   }
 
   static testMain() {
     int square(int x) {
       return x * x;
     }
+
     Expect.equals(4, apply(square, 2));
     Expect.equals(100, apply(square, 10));
 
     var v = [1, 2, 3, 4, 5, 6];
     forEach(v, square);
     Expect.equals(1, v[0]);
     Expect.equals(4, v[1]);
     Expect.equals(9, v[2]);
     Expect.equals(16, v[3]);
     Expect.equals(25, v[4]);
     Expect.equals(36, v[5]);
 
     isOdd(element) {
       return element % 2 == 1;
     }
 
     Expect.equals(true, exists([3, 5, 7, 11, 13], isOdd));
     Expect.equals(false, exists([2, 4, 10], isOdd));
     Expect.equals(false, exists([], isOdd));
 
     v = [4, 5, 7];
     Expect.equals(true, exists(v, (e) => e % 2 == 1));
     Expect.equals(false, exists(v, (e) => e == 6));
 
     var isZero = (e) => e == 0;
     Expect.equals(false, exists(v, isZero));
   }
 }
 
-
 main() {
   Param2Test.testMain();
 }