Make more JS files beter match the coding standard.

test/mjsunit/string-add.js

Index: test/mjsunit/string-add.js
diff --git a/test/mjsunit/string-add.js b/test/mjsunit/string-add.js
index f226ca18c491ad47c2e176274d420804f1f9be7a..b68e7d8112cdc6b4f0b52bdc13234478319d8af7 100644
--- a/test/mjsunit/string-add.js
+++ b/test/mjsunit/string-add.js
@@ -189,7 +189,7 @@ for (var i = 0; i <= 20; i++) {
 // Add ascii and non-ascii strings generating strings with length from 0 to 20.
 for (var i = 0; i <= 20; i++) {
   for (var j = 0; j < i; j++) {
-    assertEquals(a[i], a[j] + a[i - j])
-    assertEquals(b[i], b[j] + b[i - j])
+    assertEquals(a[i], a[j] + a[i - j]);
+    assertEquals(b[i], b[j] + b[i - j]);
   }
 }