[clang] [analyzer] Fix crash in RegionStoreManager::bindArray from constructor array-to-pointer decay (PR #210649)

[Donát Nagy via cfe-commits]

NagyDonat wrote:

> I started a CI run that analyzes a dozen open source projects with this revision (comparing it to its parent on the main branch).

By the way I forgot to mention, but this CI run finished and demonstrated that this PR doesn't break anything in our test projects.

https://github.com/llvm/llvm-project/pull/210649