adrian-prantl wrote:

> A revert is not appropriate when:
> lldb tests fail because AST printing has changed in Clang and the printed 
> output is valid

Following the logic in this argument, would you also say it's appropriate for 
someone to commit an LLVM patch that changes how textual LLVM IR is printed in 
a way that it breaks existing tests in Clang — without updating those tests?

As far as I am concerned I would expect someone making such a change to at the 
very least update the Clang tests to the new format, but even better to have a 
discussion with the community whether the benefits of this change warrant the 
churn in the tests.

https://github.com/llvm/llvm-project/pull/94208
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