Make more JS files beter match the coding standard.

test/mjsunit/debug-step.js

Index: test/mjsunit/debug-step.js
diff --git a/test/mjsunit/debug-step.js b/test/mjsunit/debug-step.js
index 2233e36c66db0fae422eb8068c7b048e388c4d6d..d3162855db445a625f998d820ea2c79b9aa6ab98 100644
--- a/test/mjsunit/debug-step.js
+++ b/test/mjsunit/debug-step.js
@@ -27,7 +27,7 @@
 
 // Flags: --expose-debug-as debug
 // Get the Debug object exposed from the debug context global object.
-Debug = debug.Debug
+Debug = debug.Debug;
 
 // Simple debug event handler which first time hit will perform 1000 steps and
 // second time hit will evaluate and store the value of "i". If requires that
@@ -48,7 +48,7 @@ function listener(event, exec_state, event_data, data) {
       }
     }
   }
-};
+}
 
 // Add the debug event listener.
 Debug.setListener(listener);
@@ -59,7 +59,7 @@ function f() {
   for (i = 0; i < 1000; i++) {  // Line 2.
     x = 1;                      // Line 3.
   }
-};
+}
 
 // Set a breakpoint on the for statement (line 1).
 bp1 = Debug.setBreakPoint(f, 1);