[use] Add FM categories to `POST_BASE_FLAGS64`

src/hb-ot-shaper-use.cc

@@ -377,6 +377,9 @@ reorder_syllable_use (hb_buffer_t *buffer, unsigned int start, unsigned int end)
 #define POST_BASE_FLAGS64 (FLAG64 (USE(FAbv)) | \
 			   FLAG64 (USE(FBlw)) | \
 			   FLAG64 (USE(FPst)) | \
+			   FLAG64 (USE(FMAbv)) | \
+			   FLAG64 (USE(FMBlw)) | \
+			   FLAG64 (USE(FMPst)) | \
 			   FLAG64 (USE(MAbv)) | \
 			   FLAG64 (USE(MBlw)) | \
 			   FLAG64 (USE(MPst)) | \

test/shape/data/in-house/tests/use-syllable.tests

@@ -22,3 +22,4 @@
 ../fonts/2a670df15b73a5dc75a5cc491bde5ac93c5077dc.ttf;;U+11124,U+200D,U+11127;[u11124=0+514|u11127=0+0]
 ../fonts/2a670df15b73a5dc75a5cc491bde5ac93c5077dc.ttf;;U+11124,U+2060,U+11127;[u11124=0+514|uni25CC=1+547|u11127=1+0]
 ../fonts/a56745bac8449d0ad94918b2bb5930716ba02fe3.ttf;;U+1142C,U+11442,U+200C,U+1142E;[u1142C=0+547|u11442=0+0|u1142E=3+547]
+../fonts/d0430ea499348c420946f6abc2efc84fdf8f00e3.ttf;;U+1142C,U+11442,U+1140E,U+1145E;[u1140E=0+736|u1142C_u11442=0+0|u1145E=0+0]