Make more JS files beter match the coding standard.

test/mjsunit/regress/regress-1639.js

Index: test/mjsunit/regress/regress-1639.js
diff --git a/test/mjsunit/regress/regress-1639.js b/test/mjsunit/regress/regress-1639.js
index ed68c97df858b4ded6c0a07b448cb0536f5f30a4..dadac5c440ca02e53654de44fe5426dc90f8923d 100644
--- a/test/mjsunit/regress/regress-1639.js
+++ b/test/mjsunit/regress/regress-1639.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;
 var breaks = 0;
 
 function sendCommand(state, cmd) {
@@ -44,7 +44,7 @@ function listener(event, exec_state, event_data, data) {
       print('break: ' + line);
 
       assertEquals(-1, line.indexOf('NOBREAK'),
-                   "should not break on unexpected lines")
+                   "should not break on unexpected lines");
       assertEquals('BREAK ' + breaks, line.substr(-7));
       breaks++;
       sendCommand(exec_state, {