lang/jimtcl 0.84 is broken and breaks devel/openocd

[Martin Husemann <martin%duskware.de@localhost>]

Hi folks,

the update of lang/jimtcl to 0.84 is incompatible to the older version
and by that breaks compilation of devel/opeocd:

src/openocd.c: In function 'jim_expr_command':
src/openocd.c:258:71: error: 'Jim_Interp' has no member named 'unused_currentScriptObj'
  258 |                 struct jim_scriptobj *script = Jim_GetIntRepPtr(interp->unused_currentScriptObj);
      |                                                                       ^~


The main API header file (jim.h) contains multiple declarations
for Jim_CreateCommand(), one in line 927 and then another a few lines
down in 942.

Can we downgrade the pkg?

Martin