fix issue 20885 - pointer rejected for the variable declared in a `if…

[ghost]

…` condition

[dlang-bot]

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Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	20885	regression	pointer rejected for the variable declared in a if condition

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#11201"