Fix Bugzilla Issue 24560 - dmd crash on imported function with default parameter containing new

[RazvanN7]

No description provided.

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Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	24560	regression	dmd crash on imported function with default parameter containing `new`

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub run digger -- build "stable + dmd#16519"

[RazvanN7]

Regression introduced by: #15968