type assertion fails on a function of the correct type when named return value used #749
Description
1. What is a short input program that triggers the error?
package main
func A() bool { return false }
func B() (_ bool) { return false }
func C() (ok bool) { return false }
var funcs = []interface{} {A, B, C}
func main() {
for i, f := range funcs {
println(i)
_ = f.(func()bool)
}
}
2. What is the full compiler output?
0
1
2
panic: interface conversion: interface is func() (bool), not func() bool
*stack trace omitted*
3. What version of the compiler are you using? (Run it with the -V flag.)
8g version 5289 release.2010-04-13 release