method resolution on an embedded interface

[mvertes]

The following program sample.go triggers an unexpected result

package main

type Transformer interface {
    Reset()
}
    
type Encoder struct {
    Transformer
}   
    
type nop struct{}

func (nop) Reset() { println("Reset") }

func f(e Transformer) {
    e.Reset()
}
    
func main() {
    e := Encoder{Transformer: nop{}}
    f(e)
}

Expected result

$ go run ./sample.go
Reset

Got

./yaegi ~/sample.go 
/Users/marc/sample.go:16:2: panic
/Users/marc/sample.go:20:28: panic
run: /Users/marc/sample.go:16:2: method not found: Reset
goroutine 1 [running]:
runtime/debug.Stack()
	/Users/marc/sdk/go1.19/src/runtime/debug/stack.go:24 +0x64
github.com/traefik/yaegi/interp.(*Interpreter).Execute.func1()
	/Users/marc/go/src/github.com/traefik/yaegi/interp/program.go:141 +0x74
panic({0x1034ddf00, 0x1400020c768})
	/Users/marc/sdk/go1.19/src/runtime/panic.go:884 +0x204
github.com/traefik/yaegi/interp.runCfg.func1()
	/Users/marc/go/src/github.com/traefik/yaegi/interp/run.go:192 +0x13c
panic({0x1034ddf00, 0x1400020c768})
	/Users/marc/sdk/go1.19/src/runtime/panic.go:884 +0x204
github.com/traefik/yaegi/interp.runCfg.func1()
	/Users/marc/go/src/github.com/traefik/yaegi/interp/run.go:192 +0x13c
panic({0x1034ddf00, 0x1400020c768})
	/Users/marc/sdk/go1.19/src/runtime/panic.go:884 +0x204
github.com/traefik/yaegi/interp.getMethodByName.func1(0x14000358160)
	/Users/marc/go/src/github.com/traefik/yaegi/interp/run.go:1968 +0x538
github.com/traefik/yaegi/interp.runCfg(0x140004bdc20, 0x14000358160, 0xffffffffffffffff?, 0x1034663a0?)
	/Users/marc/go/src/github.com/traefik/yaegi/interp/run.go:200 +0x21c
github.com/traefik/yaegi/interp.call.func9(0x140003580b0)
	/Users/marc/go/src/github.com/traefik/yaegi/interp/run.go:1433 +0x7c0
github.com/traefik/yaegi/interp.runCfg(0x140004beea0, 0x140003580b0, 0x0?, 0x0?)
	/Users/marc/go/src/github.com/traefik/yaegi/interp/run.go:200 +0x21c
github.com/traefik/yaegi/interp.(*Interpreter).run(0x14000356000, 0x140004be000, 0x14000358000?)
	/Users/marc/go/src/github.com/traefik/yaegi/interp/run.go:119 +0x3a8
github.com/traefik/yaegi/interp.(*Interpreter).Execute(0x14000356000, 0x14000437c20)
	/Users/marc/go/src/github.com/traefik/yaegi/interp/program.go:167 +0x1cc
github.com/traefik/yaegi/interp.(*Interpreter).eval(0x14000356000, {0x1400031a400?, 0xf7?}, {0x16d4bf778?, 0x1400031a200?}, 0xf7?)
	/Users/marc/go/src/github.com/traefik/yaegi/interp/interp.go:621 +0x64
github.com/traefik/yaegi/interp.(*Interpreter).EvalPath(0x14000356000, {0x16d4bf778, 0x1e})
	/Users/marc/go/src/github.com/traefik/yaegi/interp/interp.go:514 +0xa4
main.runFile(0x16d4bf778?, {0x16d4bf778, 0x1e}, 0x0)
	/Users/marc/go/src/github.com/traefik/yaegi/cmd/yaegi/run.go:153 +0xe8
main.run({0x14000032050?, 0x1, 0x1})
	/Users/marc/go/src/github.com/traefik/yaegi/cmd/yaegi/run.go:116 +0xb2c
main.main()
	/Users/marc/go/src/github.com/traefik/yaegi/cmd/yaegi/yaegi.go:144 +0x300

Yaegi Version

v0.14.1

Additional Notes

Same issue as in #1427 once #1438 is applied.