Added check for trailing whitespaces and corrected existing violations.

test/mjsunit/bugs/618.js

Index: test/mjsunit/bugs/618.js
diff --git a/test/mjsunit/bugs/618.js b/test/mjsunit/bugs/618.js
index afa9929a60edec191262ceed93c5d41f28a9af97..ddc0c19c88662d9b62c2751e570a47896884ab9e 100644
--- a/test/mjsunit/bugs/618.js
+++ b/test/mjsunit/bugs/618.js
@@ -32,14 +32,14 @@ function C1() {
 var c1 = new C1();
 assertEquals(23, c1.x);
 assertEquals("undefined", typeof c1.y);
-  
+
 // Add setter somewhere on the prototype chain after having constructed the
 // first instance.
 C1.prototype = { set x(value) { this.y = 23; } };
 var c1 = new C1();
 assertEquals("undefined", typeof c1.x);
 assertEquals(23, c1.y);
-  
+
 // Simple class using inline constructor.
 function C2() {
   this.x = 23;