check.error(field.Name, InvalidSyntaxTree, "anonymous parameter")
				// ok to continue
			}
			par := NewParam(field.Name.Pos(), check.pkg, name, typ)
			check.declare(scope, field.Name, par, scopePos)
			params = append(params, par)
			named = true
		} else {
			// anonymous parameter
			par := NewParam(field.Pos(), check.pkg, "", typ)
			check.recordImplicit(field, par)
			params = append(params, par)

func NewVar(pos token.Pos, pkg *Package, name string, typ Type) *Var {
	return &Var{object: object{nil, pos, pkg, name, typ, 0, colorFor(typ), nopos}}
}

// NewParam returns a new variable representing a function parameter.
func NewParam(pos token.Pos, pkg *Package, name string, typ Type) *Var {
	return &Var{object: object{nil, pos, pkg, name, typ, 0, colorFor(typ), nopos}, used: true} // parameters are always 'used'
}

func NewVar(pos syntax.Pos, pkg *Package, name string, typ Type) *Var {
	return &Var{object: object{nil, pos, pkg, name, typ, 0, colorFor(typ), nopos}}
}

// NewParam returns a new variable representing a function parameter.
func NewParam(pos syntax.Pos, pkg *Package, name string, typ Type) *Var {
	return &Var{object: object{nil, pos, pkg, name, typ, 0, colorFor(typ), nopos}, used: true} // parameters are always 'used'
}

	for i := range xs {
		xs[i] = r.param()
	}
	return types.NewTuple(xs...)
}

func (r *importReader) param() *types.Var {
	pos := r.pos()
	name := r.ident()
	typ := r.typ()
	return types.NewParam(pos, r.currPkg, name, typ)
}

func (r *importReader) bool() bool {
	return r.uint64() != 0
}

func (r *importReader) int64() int64 {
	n, err := binary.ReadVarint(&r.declReader)
	if err != nil {

	}

	return types.NewTuple(params...)
}

func (r *reader) param() *types.Var {
	r.Sync(pkgbits.SyncParam)

	pos := r.pos()
	pkg, name := r.localIdent()
	typ := r.typ()

	return types.NewParam(pos, pkg, name, typ)
}

// @@@ Objects

func (r *reader) obj() (types.Object, []types.Type) {
	r.Sync(pkgbits.SyncObject)

	assert(!r.Bool())

	pkg, name := r.p.objIdx(r.Reloc(pkgbits.RelocObj))

	obj := types2.NewFunc(nopos, pkg, "deferrangefunc", types2.NewSignatureType(nil, nil, nil, nil, types2.NewTuple(types2.NewParam(nopos, pkg, "extra", anyType)), false))
	pkg.Scope().Insert(obj)

	// func panicrangestate()
	obj = types2.NewFunc(nopos, pkg, "panicrangestate", types2.NewSignatureType(nil, nil, nil, types2.NewTuple(types2.NewParam(nopos, pkg, "state", intType)), nil, false))
	pkg.Scope().Insert(obj)

	return pkg
}()

				copy(vars, sig.params.vars)
				last := sig.params.vars[npars-1]
				typ := last.typ.(*Slice).elem
				for len(vars) < nargs {
					vars = append(vars, NewParam(last.pos, last.pkg, last.name, typ))
				}
				sigParams = NewTuple(vars...) // possibly nil!
				adjusted = true
				npars = nargs
			} else {
				// nargs < npars-1

				copy(vars, sig.params.vars)
				last := sig.params.vars[npars-1]
				typ := last.typ.(*Slice).elem
				for len(vars) < nargs {
					vars = append(vars, NewParam(last.pos, last.pkg, last.name, typ))
				}
				sigParams = NewTuple(vars...) // possibly nil!
				adjusted = true
				npars = nargs
			} else {
				// nargs < npars-1

	//
	// It must be possible for importers to construct such invalid interfaces.
	// Previously, this panicked.

	sig1 := NewSignatureType(nil, nil, nil, NewTuple(NewParam(nopos, nil, "", Typ[Int])), nil, false)
	sig2 := NewSignatureType(nil, nil, nil, NewTuple(NewParam(nopos, nil, "", Typ[String])), nil, false)

	methods := []*Func{
		NewFunc(nopos, nil, "M", sig1),
		NewFunc(nopos, nil, "M", sig2),
	}

	//
	// It must be possible for importers to construct such invalid interfaces.
	// Previously, this panicked.

	sig1 := NewSignatureType(nil, nil, nil, NewTuple(NewParam(nopos, nil, "", Typ[Int])), nil, false)
	sig2 := NewSignatureType(nil, nil, nil, NewTuple(NewParam(nopos, nil, "", Typ[String])), nil, false)

	methods := []*Func{
		NewFunc(nopos, nil, "M", sig1),
		NewFunc(nopos, nil, "M", sig2),
	}