Categorize U+A8B4 as Consonant_Medial

src/gen-use-table.py

@@ -307,6 +307,9 @@ def map_to_use(data):
 		# TODO: https://github.com/harfbuzz/harfbuzz/pull/609
 		if U == 0x20F0: UISC = Cantillation_Mark; UIPC = Top
 
+		# TODO: https://github.com/harfbuzz/harfbuzz/pull/626
+		if U == 0xA8B4: UISC = Consonant_Medial
+
 		values = [k for k,v in items if v(U,UISC,UGC)]
 		assert len(values) == 1, "%s %s %s %s" % (hex(U), UISC, UGC, values)
 		USE = values[0]

src/hb-ot-shape-complex-use-table.cc

@@ -377,7 +377,7 @@ static const USE_TABLE_ELEMENT_TYPE use_table[] = {
   /* A880 */ VMPst, VMPst,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,
   /* A890 */     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,
   /* A8A0 */     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,
-  /* A8B0 */     B,     B,     B,     B,  FPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,
+  /* A8B0 */     B,     B,     B,     B,  MPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,  VPst,
   /* A8C0 */  VPst,  VPst,  VPst,  VPst,     H, VMAbv,     O,     O,     O,     O,     O,     O,     O,     O,     O,     O,
   /* A8D0 */     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     O,     O,     O,     O,     O,     O,
 

test/shaping/tests/use-syllable.tests

@@ -3,3 +3,4 @@ fonts/sha1sum/e68a88939e0f06e34d2bc911f09b70890289c8fd.ttf::U+AA00,U+AA34,U+AA36
 fonts/sha1sum/e68a88939e0f06e34d2bc911f09b70890289c8fd.ttf::U+AA00,U+AA35,U+AA33:[a_cham=0+1121|laMedial_cham=0@-32,0+0|yaMedial_cham=0+542]
 fonts/sha1sum/e68a88939e0f06e34d2bc911f09b70890289c8fd.ttf::U+AA00,U+AA35,U+AA36:[a_cham=0+1121|laMedial_waMedial_cham=0@43,0+0]
 fonts/sha1sum/074a5ae6b19de8f29772fdd5df2d3d833f81f5e6.ttf:--no-glyph-names:U+11320,U+20F0,U+11367:[3=0+502|1=0@33,0+0|4=0@300,8+0]
+fonts/sha1sum/373e67bf41ca264e260a9716162b71a23549e885.ttf:--no-glyph-names:U+A8AC,U+A8B4,U+A8B5:[2=0+377|3=0+242|4=0+210]