[array] Add constructor from fixed-size array

src/hb-array.hh

@@ -46,6 +46,7 @@ struct hb_array_t
   hb_array_t (const hb_array_t &o) : arrayZ (o.arrayZ), len (o.len) {}
   hb_array_t (hb_array_t<const Type> o) : arrayZ (o.arrayZ), len (o.len) {}
   hb_array_t (Type *array_, unsigned int len_) : arrayZ (array_), len (len_) {}
+  template <unsigned int len_> hb_array_t (Type (&array_)[len_]) : arrayZ (array_), len (len_) {}
 
   /*
    * Operators.

src/hb-iter.hh

@@ -54,7 +54,7 @@ struct Iter;
 template <typename T>
 struct Iter
 {
-  explicit inline Iter (const T &c);
+  Iter (const T &c);
 };
 #endif
 
@@ -68,7 +68,7 @@ struct Iter<T *>
   Iter (T *array_, int length_) :
     array (array_), length (MAX (length_, 0)) {}
   template <unsigned int length_>
-  explicit inline Iter (T (&array_)[length_]) :
+  Iter (T (&array_)[length_]) :
     array (array_), length (length_) {}
 
   /* Emptiness. */