[clang] [LifetimeSafety] Trace assignment history for use-after-scope errors (PR #188467)

[via cfe-commits]

suoyuan666 wrote:

The CI failed with error: no matching member function for call to 'value_or'.

My original intent was simply to suppress output when the `has_value() == false`. I will prioritize the functional changes based on the review feedback and ensure this build error is resolved in the next push.

https://github.com/llvm/llvm-project/pull/188467