Add support for storing basic block context in Gematria formats.

[virajbshah]

• Add fields to the proto specification to store context.
• Add members to the Gematria BasicBlock data structure to store context and update methods on it and its Python binding accordingly.
• Bonus: Remove dangling TODO.

[virajbshah]

Bumping the C++ formatting CI version from v4.11.0 (clang-format-16) -> v4.14.0 (clang-format-19) should be enough to fix that failing check, though I'm not sure if re-running it after the update will use the new version without adding another commit to this PR.

[boomanaiden154]

though I'm not sure if re-running it after the update will use the new version without adding another commit to this PR.

#291. If you rerun the checks, it will be fixed. Github tests PRs as if they are merged against main by default.

[virajbshah]

If you rerun the checks, it will be fixed. Github tests PRs as if they are merged against main by default.

That would make sense, but for whatever reason re-running the action still uses clang-format-18. IIRC, adding another commit to the PR is what gets GitHub to pick up on the updated workflows.

[boomanaiden154]

That would make sense, but for whatever reason re-running the action still uses clang-format-18. IIRC, adding another commit to the PR is what gets GitHub to pick up on the updated workflows.

Interesting. Running git merge main on your branch after pulling a recent main should definitely fix the issue.