[clang] [clang][ExprConst] Check for array size of initlists (PR #138673)

[via cfe-commits]

Sirraide wrote:

> I have not added the test since I thought it might take too long, but it's probably not a problem since we do the check before even touching the array...

Can’t you set the eval steps to like `100` or sth to avoid it taking too long or am I missing something here?

https://github.com/llvm/llvm-project/pull/138673