fix: Add check for non nil parameters with expression and aliasing

[codecov[bot]]

Codecov Report

Patch coverage: 81.82% and project coverage change: +0.45% :tada:

Comparison is base (aa4977d) 70.10% compared to head (396acbc) 70.55%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #6 +/- ## ========================================== + Coverage 70.10% 70.55% +0.45% ========================================== Files 19 19 Lines 2140 2142 +2 ========================================== + Hits 1500 1511 +11 + Misses 576 568 -8 + Partials 64 63 -1 ``` | [Files Changed](https://app.codecov.io/gh/rlch/neogo/pull/6?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Richard+Mathieson) | Coverage Δ | | |---|---|---| | [internal/scope.go](https://app.codecov.io/gh/rlch/neogo/pull/6?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Richard+Mathieson#diff-aW50ZXJuYWwvc2NvcGUuZ28=) | `77.93% <80.49%> (-0.12%)` | :arrow_down: | | [internal/cypher.go](https://app.codecov.io/gh/rlch/neogo/pull/6?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Richard+Mathieson#diff-aW50ZXJuYWwvY3lwaGVyLmdv) | `92.23% <84.62%> (+1.30%)` | :arrow_up: | | [internal/tests/common.go](https://app.codecov.io/gh/rlch/neogo/pull/6?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Richard+Mathieson#diff-aW50ZXJuYWwvdGVzdHMvY29tbW9uLmdv) | `100.00% <100.00%> (ø)` | | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/rlch/neogo/pull/6/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Richard+Mathieson)

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