Make more JS files beter match the coding standard.

test/mjsunit/regress/regress-799761.js

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 30 matching lines @@
   }
   x = 5;
   assertEquals(7, x);
 })();
 
 
 // const variables may be declared but never initialized, in which case
 // their value is undefined.
 
 (function (sel) {
-  if (sel == 0)
+  if (sel == 0) {
     with ({ x: 42 }) {
     const x;
     }
-  else
+  } else {
     x = 3;
+  }
   x = 5;
   assertTrue(typeof x == 'undefined');
 })(1);
 
 
 // const variables may be initialized to undefined.
 (function () {
   with ({ x: 42 }) {
     const x = undefined;
   }
   x = 5;
   assertTrue(typeof x == 'undefined');
 })();
 
 
 // const variables may be accessed in inner scopes like any other variable.
 (function () {
   function bar() {
     assertEquals(7, x);
   }
   with ({ x: 42 }) {
     const x = 7;
   }
-  x = 5
+  x = 5;
   bar();
 })();
 
 
 // const variables may be declared via 'eval'
 (function () {
   with ({ x: 42 }) {
     eval('const x = 7');
   }
   x = 5;
   assertEquals(7, x);
 })();