[clang] [SSAF] Fix a stage2 test failure with ASan-instrumented clang - continued (PR #217799)

[Ziqing Luo via cfe-commits]

ziqingluo-90 wrote:

> I wish we had a more fine-grained solution for this. I start itching when I think about disabling asan for our stuff.

I wonder why it only break our code.  
The "good" side is that this is just a test code.

https://github.com/llvm/llvm-project/pull/217799