[clang] [Inliner] Improve attribute propagation to callsites when inlining. (PR #66036)

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goldsteinn wrote:

Compile time impact: https://llvm-compile-time-tracker.com/compare.php?from=825df6cfeae3b3aeaa3e8a1882c564bc50d99be5&to=4ccda9426371d37d57042058992931e3bd1ea9e3&stat=instructions:u

Some regression for ThinLTO/FullLTO, minimal for normal O3 build.

https://github.com/llvm/llvm-project/pull/66036