[clang] [clang] Reset DataLayout when overriding an IR module's triple (PR #232499)

[Qiongsi Wu via cfe-commits]

qiongsiwu wrote:

Thanks @jroelofs and @arsenm ! I am losing this PR in favor of https://github.com/llvm/llvm-test-suite/pull/514. 

https://github.com/llvm/llvm-project/pull/232499