Bug 623116 - Add constructor for nsASCIICaseInsensitiveStringComparator (which inherits from nsStringComparator) to placate CLang; r=smontagu

intl/unicharutil/util/nsUnicharUtils.h

@@ -103,6 +103,7 @@ public:
 class nsASCIICaseInsensitiveStringComparator : public nsStringComparator
 {
 public:
+  nsASCIICaseInsensitiveStringComparator() {}
   virtual int operator() (const PRUnichar*,
                           const PRUnichar*,
                           PRUint32,