[HB] Add HeadlessArrayTo<>
diff --git a/src/hb-ot-layout-gsubgpos-private.h b/src/hb-ot-layout-gsubgpos-private.h
index 8c061aa..e82941e 100644
--- a/src/hb-ot-layout-gsubgpos-private.h
+++ b/src/hb-ot-layout-gsubgpos-private.h
@@ -362,9 +362,8 @@
backtrack; /* Array of backtracking values
* (to be matched before the input
* sequence) */
- USHORT inputCountX; /* Total number of values in the input
- * sequence (includes the first glyph) */
- USHORT inputX[]; /* Array of input values (start with
+ HeadlessArrayOf<USHORT>
+ inputX; /* Array of input values (start with
* second glyph) */
ArrayOf<USHORT>
lookaheadX; /* Array of lookahead values's (to be