func (t *Interface) cleanup() {
	t.typeSet() // any interface that escapes type checking must be safe for concurrent use
	t.check = nil
	t.embedPos = nil
}

func (check *Checker) interfaceType(ityp *Interface, iface *ast.InterfaceType, def *TypeName) {
	addEmbedded := func(pos token.Pos, typ Type) {
		ityp.embeddeds = append(ityp.embeddeds, typ)
		if ityp.embedPos == nil {
			ityp.embedPos = new([]token.Pos)
		}

	"go/token"
	"io/fs"
	"os"
	"path/filepath"
	"runtime"
	"strings"
	"sync"
	"testing"
)

var typeNames = []string{
	"uncommonType",
	"arrayType",
	"chanType",
	"funcType",
	"interfaceType",
	"ptrType",
	"sliceType",
	"structType",
}

type visitor struct {
	m map[string]map[string]bool
}

func newVisitor() visitor {
	v := visitor{}
	v.m = make(map[string]map[string]bool)

            Type type = Type.getObjectType(superName);
            maybeAddDependentType(types, type);
        }
        for (String s : interfaces) {
            Type interfaceType = Type.getObjectType(s);
            maybeAddDependentType(types, interfaceType);
        }
    }

    @Override
    public ModuleVisitor visitModule(String name, int access, String version) {
        moduleName = name;

        .testAllPublicInstanceMethods(new ForwardingWrapperTester());
  }

  private <T> void assertFailure(
      Class<T> interfaceType,
      Function<T, ? extends T> wrapperFunction,
      String... expectedMessages) {
    try {
      tester.testForwarding(interfaceType, wrapperFunction);
    } catch (AssertionFailedError expected) {
      for (String message : expectedMessages) {

		return 1 << nImportSpec
	case *ast.IncDecStmt:
		return 1 << nIncDecStmt
	case *ast.IndexExpr:
		return 1 << nIndexExpr
	case *ast.IndexListExpr:
		return 1 << nIndexListExpr
	case *ast.InterfaceType:
		return 1 << nInterfaceType
	case *ast.KeyValueExpr:
		return 1 << nKeyValueExpr
	case *ast.LabeledStmt:
		return 1 << nLabeledStmt
	case *ast.MapType:
		return 1 << nMapType
	case *ast.Package:

  }

  public void testGetGenericInterfaces_wildcard_boundIsInterface() {
    TypeToken<Iterable<String>> interfaceType = new TypeToken<Iterable<String>>() {};
    makeUnmodifiable(TypeToken.of(Types.subtypeOf(interfaceType.getType())).getGenericInterfaces())
        .containsExactly(interfaceType);
    assertHasArrayInterfaces(new TypeToken<Iterable<String>[]>() {});
  }

//	struct {
//		funcType
//		uncommonType
//		[2]*rtype    // [0] is in, [1] is out
//	}
type funcType = abi.FuncType

// interfaceType represents an interface type.
type interfaceType struct {
	abi.InterfaceType // can embed directly because not a public type.
}

func (t *interfaceType) nameOff(off aNameOff) abi.Name {
	return toRType(&t.Type).nameOff(off)
}

func nameOffFor(t *abi.Type, off aNameOff) abi.Name {

        .testAllPublicInstanceMethods(new ForwardingWrapperTester());
  }

  private <T> void assertFailure(
      Class<T> interfaceType,
      Function<T, ? extends T> wrapperFunction,
      String... expectedMessages) {
    try {
      tester.testForwarding(interfaceType, wrapperFunction);
    } catch (AssertionFailedError expected) {
      for (String message : expectedMessages) {

  }

  public void testGetGenericInterfaces_wildcard_boundIsInterface() {
    TypeToken<Iterable<String>> interfaceType = new TypeToken<Iterable<String>>() {};
    makeUnmodifiable(TypeToken.of(Types.subtypeOf(interfaceType.getType())).getGenericInterfaces())
        .containsExactly(interfaceType);
    assertHasArrayInterfaces(new TypeToken<Iterable<String>[]>() {});
  }

		buf.WriteString("struct{")
		writeFieldList(buf, x.Fields.List, "; ", false)
		buf.WriteByte('}')

	case *ast.FuncType:
		buf.WriteString("func")
		writeSigExpr(buf, x)

	case *ast.InterfaceType:
		buf.WriteString("interface{")
		writeFieldList(buf, x.Methods.List, "; ", true)
		buf.WriteByte('}')

	case *ast.MapType:
		buf.WriteString("map[")
		WriteExpr(buf, x.Key)
		buf.WriteByte(']')