Fix equality comparison between h$unbox_e values.
Fix equality comparison between h$unbox_e values.

parvmor/codeworld,venkat24/codeworld,google/codeworld,google/codeworld,alphalambda/codeworld,nomeata/codeworld,pranjaltale16/codeworld,pranjaltale16/codeworld,Ye-Yong-Chi/codeworld,stefan-j/codeworld,xwysp/codeworld,tgdavies/codeworld,three/codeworld,nomeata/codeworld,stefan-j/codeworld,alphalambda/codeworld,venkat24/codeworld,google/codeworld,d191562687/codeworld,stefan-j/codeworld,parvmor/codeworld,tgdavies/codeworld,Ye-Yong-Chi/codeworld,nomeata/codeworld,three/codeworld,pranjaltale16/codeworld,tgdavies/codeworld,three/codeworld,venkat24/codeworld,alphalambda/codeworld,xwysp/codeworld,parvmor/codeworld,xwysp/codeworld,d191562687/codeworld,d191562687/codeworld,Ye-Yong-Chi/codeworld