(A-cgnU+222C1): New abstract node.

(A-cgnU+222C1): New abstract node.
(A-IWDSU+5ECF): New abstract node; use `<-denotational' for
A-cgnU+222C1.
(A-compU+5ECF): New abstract node; use `<-denotational' for
A-IWDSU+5ECF.
(U+5ECF): Add `<-denotational' for A-compU+5ECF.
(U+5EC4): Likewise; apply new conventions for glyph granularity.
(HNG-KAR0112-0): Use A-cgnU+222C1 instead of U-000222C1 as its mother.
(MJ035419): Unify U-000222C1 instead of IU+222C1 and A-IWDSU+222C1;
use A-IWDSU+5ECF instead of U-000222C1 as its mother.