test/SIL/Inputs/whole_module_optimization_helper.swift - third_party/swift - Git at Google

 func compute(_ fn: () -> Int32) -> Int32 {
   return fn() + privateFn()
 }

 private func privateFn() -> Int32 {
   return 40
 }
	func compute(_ fn: () -> Int32) -> Int32 {
	return fn() + privateFn()
	}

	private func privateFn() -> Int32 {
	return 40
	}