expose CELL status of a symbol in symtable

Feature or enhancement

Proposal:

symtable symbols have the following predicates, but for some reason no is_cell. Is there a reason for this, or should we expose is_cell as well?

'is_annotated', 'is_assigned', 'is_declared_global', 'is_free', 'is_global', 'is_imported', 'is_local', 'is_namespace', 'is_nonlocal', 'is_parameter', 'is_referenced'

The symbol obviously knows whether it's a cell:

>>> st.get_children()[0].get_symbols()[0]._scope_str
<bound method Symbol._scope_str of <symbol 'x': CELL, USE|DEF_LOCAL>>

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

No response

Linked PRs

• gh-143549

Inizia con i predicati di Symbol di symtable elencati nell’issue e verifica come il simbolo segnala il proprio scope interno CELL. L’issue rimanda alla PR gh-143549, quindi esamina prima quel lavoro. Il lavoro è completo quando lo stato CELL è esposto tramite l’API symtable in modo coerente con i predicati esistenti.