// issue10260
// Check that error messages explain reason for interface assignment failures.
type (
	I0 interface{}
	I1 interface{ foo() }
	I2 interface{ foo(x int) }
	T0 struct{}
	T1 struct{}
	T2 struct{}
)

func (*T1) foo() {}
func (*T2) foo(x int) {}

func issue10260() {
	var (
		i0 I0
		i1 I1
		i2 I2
		t0 *T0

	//
	// Brittle: the assertion may fail spuriously when the algorithm
	// changes, but should remain stable otherwise.
	got := fmt.Sprintf("%T %T", in, opts)
	want := "issue9026._Ctype_struct___0 *issue9026._Ctype_struct___1"
	if got != want {
		t.Errorf("Non-deterministic type names: got %s, want %s", got, want)
	}

// errorcheckoutput mechanism.

package main

import (
	"io/ioutil"
	"log"
	"os"
	"os/exec"
	"strings"
)

func main() {
	// create source
	f, err := ioutil.TempFile("", "issue13268-")
	if err != nil {
		log.Fatalf("could not create source file: %v", err)
	}
	f.Write([]byte("package p\n\nfunc \xef\xef")) // if this fails, we will die later
	f.Close()
	defer os.Remove(f.Name())

Dmitri Shuralyov <******@****.***> 1697569678 -0400

Dmitri Shuralyov <******@****.***> 1697569678 -0400

Dmitri Shuralyov <******@****.***> 1697569678 -0400

Dmitri Shuralyov <******@****.***> 1697569678 -0400

// List of files that the compiler cannot errorcheck with the new typechecker (types2).
var types2Failures = setOf(
	"shift1.go",               // types2 reports two new errors which are probably not right
	"fixedbugs/issue10700.go", // types2 should give hint about ptr to interface
	"fixedbugs/issue18331.go", // missing error about misuse of //go:noescape (irgen needs code from noder)