[llvm] [Sample Profile] Check hot callsite threshold when inlining a function with a sample profile (PR #93286)

[David Li via llvm-commits]

david-xl wrote:

The change looks reasonable.

Or perhaps limit the inline aggressiveness check to xfdo builds only which suffers from the compile time issue more due to more flat profile.

https://github.com/llvm/llvm-project/pull/93286