[llvm] llvm/include/llvm/DebugInfo/CodeView/TypeHashing.h: 2 * pointless copy (#94385) (PR #94410)

[David Blaikie via llvm-commits]

dwblaikie wrote:

This data type is trivially copyable and seems to be 8 bytes - that seems small enough that passing by value might be OK?

What tooling caught this/what is the rules that determine what's too expensive to copy/should be passed by const ref?

https://github.com/llvm/llvm-project/pull/94410