// after foo has been analyzed, but it's conceivable that CanInline
// might visit bar before foo for this SCC.
func ScoreCalls(fn *ir.Func) {
	if len(fn.Body) == 0 {
		return
	}
	enableDebugTraceIfEnv()

	nameFinder := newNameFinder(fn)

	if debugTrace&debugTraceScoring != 0 {
		fmt.Fprintf(os.Stderr, "=-= ScoreCalls(%v)\n", ir.FuncName(fn))
	}