merge_glyphless_glyph_face 3445 src/dispextern.h extern int merge_glyphless_glyph_face (struct it *);
merge_glyphless_glyph_face 1837 src/term.c       int len, face_id = merge_glyphless_glyph_face (it);
merge_glyphless_glyph_face 31806 src/xdisp.c      face_id = merge_glyphless_glyph_face (it);