fix #22386 - Indexed initialization of multi dimensional const array does not compile.

[rainers]

pass the element type to initializerToExpression() for the element if the dimensions for type and initializer match

[dlang-bot]

Thanks for your pull request, @rainers!

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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#22391"

[thewilsonator]

Thanks!