[arrays] Minor fix

src/hb-open-type.hh

@@ -488,7 +488,7 @@ struct SortedUnsizedArrayOf : UnsizedArrayOf<Type>
   hb_sorted_array_t<const Type> as_array (unsigned int len) const
   { return hb_sorted_array (this->arrayZ, len); }
   operator hb_sorted_array_t<Type> (void) { return as_array (); }
-  operator hb_sorted_array_t<const Type> (void) const { as_array (); }
+  operator hb_sorted_array_t<const Type> (void) const { return as_array (); }
 
   template <typename T>
   Type &bsearch (unsigned int len, const T &x, Type &not_found = Crap (Type))
@@ -804,7 +804,7 @@ struct SortedArrayOf : ArrayOf<Type, LenType>
   hb_sorted_array_t<const Type> as_array (void) const
   { return hb_sorted_array (this->arrayZ, this->len); }
   operator hb_sorted_array_t<Type> (void) { return as_array (); }
-  operator hb_sorted_array_t<const Type> (void) const { as_array (); }
+  operator hb_sorted_array_t<const Type> (void) const { return as_array (); }
 
   hb_array_t<const Type> sub_array (unsigned int start_offset, unsigned int count) const
   { return as_array ().sub_array (start_offset, count);}