test(api): disable module concatenation in tree-shaking test

[legendecas]

Which problem is this PR solving?

Fixes CI failures in #3208 (comment).

Short description of the changes

When small modules are concatenated, variable names are mangled, which fails the matching in the tree-shaking test.

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• Followed the style guidelines of this project
• Unit tests have been added

[codecov]

Codecov Report

Merging #3409 (7f7d8fa) into main (125f11e) will not change coverage.
The diff coverage is n/a.

❗ Current head 7f7d8fa differs from pull request most recent head ce648a8. Consider uploading reports for the commit ce648a8 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3409   +/-   ##
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  Coverage   93.26%   93.26%           
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  Files         247      247           
  Lines        7348     7348           
  Branches     1512     1512           
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  Hits         6853     6853           
  Misses        495      495           

[dyladan]

Maybe it would be safer to validate on a name we know won't be manged? Or on the string API_NAME which is a string constant and can't be mangled?

[legendecas]

Maybe it would be safer to validate on a name we know won't be manged? Or on the string API_NAME which is a string constant and can't be mangled?

Yeah, that's another option. The value of API_NAME is not so unique so we still need an anchor to locate the exact string -- and API_NAME itself can be mangled too. So I find the current approach might be the most straightforward one.