Added check for trailing whitespaces and corrected existing violations.

test/mjsunit/regress/regress-678525.js

Index: test/mjsunit/regress/regress-678525.js
diff --git a/test/mjsunit/regress/regress-678525.js b/test/mjsunit/regress/regress-678525.js
index 5ff9c3d9e419d48b71b155c5572b8b7954544377..11eaf74fc8153fc0b24a25c3aa16864f054bf2b1 100644
--- a/test/mjsunit/regress/regress-678525.js
+++ b/test/mjsunit/regress/regress-678525.js
@@ -36,16 +36,16 @@ assertEquals(7,  '\7'.charCodeAt(0));
 assertEquals(56, '\8'.charCodeAt(0));
 
 assertEquals('\010', '\10');
-assertEquals('\011', '\11');    
+assertEquals('\011', '\11');
 assertEquals('\012', '\12');
 assertEquals('\013', '\13');
 assertEquals('\014', '\14');
 assertEquals('\015', '\15');
 assertEquals('\016', '\16');
 assertEquals('\017', '\17');
-    
+
 assertEquals('\020', '\20');
-assertEquals('\021', '\21');    
+assertEquals('\021', '\21');
 assertEquals('\022', '\22');
 assertEquals('\023', '\23');
 assertEquals('\024', '\24');
@@ -56,4 +56,4 @@ assertEquals('\027', '\27');
 assertEquals(73,  '\111'.charCodeAt(0));
 assertEquals(105, '\151'.charCodeAt(0));
 
-    
+