[clang] [Clang] fix for heterogeneous chip's host side's MaybeODRUseExprs clear (PR #121085)

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fuaq wrote:

> I don't think I understand this change. There at least needs to be a more detailed summary and tests. I imagine test would help clarify the intent better.

hi, It will lead to a crash for this test without this pr.just like this
<img width="2224" height="1104" alt="image" src="https://github.com/user-attachments/assets/4d127cc5-4ec3-4650-a06f-8c391b419baa" />




https://github.com/llvm/llvm-project/pull/121085