[clang] [clang][Parser] Fix FunctionDecl source range for out-of-class '= delete'/'= default' definitions (PR #167007)

[Yanzuo Liu via cfe-commits]

https://github.com/zwuis commented:

Thank you for your patch! Please add a release note entry to "clang/docs/ReleaseNotes.rst".

https://github.com/llvm/llvm-project/pull/167007