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      -- go.mod --
module example.com
go 1.18
-- func.go --
package main
// Test of dynamic function calls.
// No interfaces, so no runtime/reflect types.
func A1() {
	A2(0)
}
func A2(int) {} // not address-taken
func B() {} // unreachable
var (
	C = func(int) {}
	D = func(int) {}
)
func main() {
	A1()
	pfn := C
	pfn(0) // calls C and D but not A2 (same sig but not address-taken)
}
// WANT:
//
//  edge main --dynamic function call--> init$1
//  edge main --dynamic function call--> init$2
//
//  reachable A1
//  reachable A2
//  reachable init$1
//  reachable init$2
// !reachable B
//  reachable main 
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