[clang] [clang] Emit bad shift warnings (PR #70307)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

> The android NDK code is wrong, but this no longer compiles (even with -Wno-error).

Well that's unfortunate! Thank you for letting us know.

@alanzhao1 do you think it's reasonable for the workaround to only apply to code in system headers, or does the NDK get included as regular headers generally? Do you need us to revert the changes while we resolve this?

@budimirarandjelovicsyrmia, can you please add a workaround so that the NDK code can continue to compile?

https://github.com/llvm/llvm-project/pull/70307