[clang] [analyzer] Fix crash in RegionStoreManager::bindArray (PR #210200)

[Andy Ames via cfe-commits]

andyames-a11y wrote:

@steakhal Thanks again for looking into this. After a day of reading to get better understanding of the static analyzer, I completely understand what your smaller repro case is pointing at.

I will go back to the drawing board with another PR. In the meantime, I will add your small repro case to the original issue I posted: https://github.com/llvm/llvm-project/issues/210183

https://github.com/llvm/llvm-project/pull/210200