Feature or enhancement

Proposal:

I suggest improving the token kind checks tkn.kind == "<hardcoded string>" by using the corresponding lexer's constant string (which already exists). Some portion of the code already does it but not everywhere. We can also do the same for other kind of constructions where hard-coded strings could be replaced by constants, both for the semantics and for safety.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-122449: Use constants instead of hard-coded strings in Tools/cases_generator #122448