Added check for trailing whitespaces and corrected existing violations.

test/mjsunit/debug-stepin-call-function-stub.js

Index: test/mjsunit/debug-stepin-call-function-stub.js
diff --git a/test/mjsunit/debug-stepin-call-function-stub.js b/test/mjsunit/debug-stepin-call-function-stub.js
index c5cf8fdf3a7767855e35310b7ea1e4359ff4246c..053b8bfe8a993aa8f0b23e1252343d4c95a01c65 100644
--- a/test/mjsunit/debug-stepin-call-function-stub.js
+++ b/test/mjsunit/debug-stepin-call-function-stub.js
@@ -62,7 +62,7 @@ function listener(event, exec_state, event_data, data) {
 Debug.setListener(listener);
 
 
-function g() { 
+function g() {
    return "s";  // expected line
 }
 
@@ -71,7 +71,7 @@ function testFunction() {
   var s = 1 +f(10);
 }
 
-function g2() { 
+function g2() {
    return "s2";  // expected line
 }