[arabic] Fix Arabic cursive positioning

This was clearly broken in testing.  Who knows...  Fixes for me.
Test with a Nastaleeq font, or with Arabic Typesetting.

Backporting from Chromium.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/harfbuzz-shaper.cpp b/src/harfbuzz-shaper.cpp
index 7d433ea..7fd04a9 100644
--- a/src/harfbuzz-shaper.cpp
+++ b/src/harfbuzz-shaper.cpp
@@ -1269,7 +1269,7 @@ HB_Bool HB_OpenTypePosition(HB_ShaperItem *item, int availableGlyphs, HB_Bool do
                 adjustment = HB_FIXED_ROUND(adjustment);
 
             if (positions[i].new_advance) {
-                advances[i] = adjustment;
+                ; //advances[i] = adjustment;
             } else {
                 advances[i] += adjustment;
             }