Handle additional AST cases for operator usage checks

[codecov[bot]]

Codecov Report

Merging #118 (4336eab) into main (6ebac12) will decrease coverage by 0.05%. The diff coverage is 78.37%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #118 +/- ## ========================================== - Coverage 84.22% 84.18% -0.05% ========================================== Files 14 14 Lines 1046 1056 +10 Branches 232 236 +4 ========================================== + Hits 881 889 +8 Misses 74 74 - Partials 91 93 +2 ``` | [Files Changed](https://app.codecov.io/gh/lanterndata/lanterndb/pull/118?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=lanterndata) | Coverage Δ | | |---|---|---| | [src/parser/parse\_op.c](https://app.codecov.io/gh/lanterndata/lanterndb/pull/118?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=lanterndata#diff-c3JjL3BhcnNlci9wYXJzZV9vcC5j) | `87.03% <77.77%> (-0.72%)` | :arrow_down: | | [src/hnsw/options.c](https://app.codecov.io/gh/lanterndata/lanterndb/pull/118?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=lanterndata#diff-c3JjL2huc3cvb3B0aW9ucy5j) | `85.93% <100.00%> (ø)` | |