[llvm] BranchProbabilityInfo: Report branch_weights 1, 0 for invoke (PR #72947)

[David Li via llvm-commits]

david-xl wrote:

Agree with @WenleiHe here. Perhaps changing BlockExecWeight to be uint64 type and scale up all the categories other than UNWIND.

https://github.com/llvm/llvm-project/pull/72947