[clang-tools-extra] [clang-tidy] Improve redundant-casting check for binary operation (PR #191386)

[Leandro Lupori via cfe-commits]

luporl wrote:

It looks like this broke some Arm (32-bit) buildbots:
- https://lab.llvm.org/buildbot/#/builders/135/builds/3657
- https://lab.llvm.org/buildbot/#/builders/79/builds/3253

Can you please take a look at it?
I can help with Arm testing and provide additional error details if needed.

https://github.com/llvm/llvm-project/pull/191386