Fix: macro composition in unit tests

[nathanskone]

Resolves #10157

DRAFT: Just reproduces the bug, does not resolve it yet

Problem

Unit tests fail with a compilation error claiming a macro is “undefined” (even though it exists), triggered when combining macro calls in expressions.

Solution

???

Checklist

• I have read the contributing guide and understand what's expected of me.
• I have run this code in development, and it appears to resolve the stated issue.
• This PR includes tests, or tests are not required or relevant for this PR.
• This PR has no interface changes (e.g., macros, CLI, logs, JSON artifacts, config files, adapter interface, etc.) or this PR has already received feedback and approval from Product or DX.
• This PR includes type annotations for new and modified functions.