llvm-project

4ef16e31 - [NFC][clang-tidy] document fix to bugprone-return-const-ref-from-parameter (#107641)

[NFC][clang-tidy] document fix to bugprone-return-const-ref-from-parameter (#107641) Describe how the issue that is diagnosed by this check can be resolved. Namely, by adding an overload for the xvalue case (`&&` parameter). Fixes #107600