}
	return lookupFieldOrMethod(T, addressable, pkg, name, false)
}

// lookupFieldOrMethod is like LookupFieldOrMethod but with the additional foldCase parameter
// (see Object.sameId for the meaning of foldCase).
func lookupFieldOrMethod(T Type, addressable bool, pkg *Package, name string, foldCase bool) (obj Object, index []int, indirect bool) {
	// Methods cannot be associated to a named pointer type.

	}
	return lookupFieldOrMethod(T, addressable, pkg, name, false)
}

// lookupFieldOrMethod is like LookupFieldOrMethod but with the additional foldCase parameter
// (see Object.sameId for the meaning of foldCase).
func lookupFieldOrMethod(T Type, addressable bool, pkg *Package, name string, foldCase bool) (obj Object, index []int, indirect bool) {
	// Methods cannot be associated to a named pointer type.

		return "", i.Op == syntax.InstMatch, uint32(p.Start)
	}

	// Have prefix; gather characters.
	var buf strings.Builder
	for iop(i) == syntax.InstRune && len(i.Rune) == 1 && syntax.Flags(i.Arg)&syntax.FoldCase == 0 && i.Rune[0] != utf8.RuneError {
		buf.WriteRune(i.Rune[0])
		pc, i = i.Out, &p.Inst[i.Out]
	}
	if i.Op == syntax.InstEmptyWidth &&
		syntax.EmptyOp(i.Arg)&syntax.EmptyEndText != 0 &&

	}
}

// methodIndex returns the index of the method with the given name.
// If foldCase is set, capitalization in the name is ignored.
// The result is negative if no such method exists.
func (t *Named) methodIndex(name string, foldCase bool) int {
	if name == "_" {
		return -1
	}
	if foldCase {
		for i, m := range t.methods {
			if strings.EqualFold(m.name, name) {
				return i
			}
		}

	}
}

// methodIndex returns the index of the method with the given name.
// If foldCase is set, capitalization in the name is ignored.
// The result is negative if no such method exists.
func (t *Named) methodIndex(name string, foldCase bool) int {
	if name == "_" {
		return -1
	}
	if foldCase {
		for i, m := range t.methods {
			if strings.EqualFold(m.name, name) {
				return i
			}
		}

	setParent(*Scope)

	// sameId reports whether obj.Id() and Id(pkg, name) are the same.
	// If foldCase is true, names are considered equal if they are equal with case folding
	// and their packages are ignored (e.g., pkg1.m, pkg1.M, pkg2.m, and pkg2.M are all equal).
	sameId(pkg *Package, name string, foldCase bool) bool

	// scopePos returns the start position of the scope of this Object
	scopePos() syntax.Pos

	setParent(*Scope)

	// sameId reports whether obj.Id() and Id(pkg, name) are the same.
	// If foldCase is true, names are considered equal if they are equal with case folding
	// and their packages are ignored (e.g., pkg1.m, pkg1.M, pkg2.m, and pkg2.M are all equal).
	sameId(pkg *Package, name string, foldCase bool) bool

	// scopePos returns the start position of the scope of this Object
	scopePos() token.Pos

// LookupMethod returns the index of and method with matching package and name, or (-1, nil).
func (s *_TypeSet) LookupMethod(pkg *Package, name string, foldCase bool) (int, *Func) {
	return methodIndex(s.methods, pkg, name, foldCase)
}

func (s *_TypeSet) String() string {
	switch {
	case s.IsEmpty():
		return "∅"
	case s.IsAll():
		return "𝓤"
	}

	hasMethods := len(s.methods) > 0

// LookupMethod returns the index of and method with matching package and name, or (-1, nil).
func (s *_TypeSet) LookupMethod(pkg *Package, name string, foldCase bool) (int, *Func) {
	return methodIndex(s.methods, pkg, name, foldCase)
}

func (s *_TypeSet) String() string {
	switch {
	case s.IsEmpty():
		return "∅"
	case s.IsAll():
		return "𝓤"
	}

	hasMethods := len(s.methods) > 0

	{`[[:upper:]]`, `cc{0x41-0x5a 0x61-0x7a 0x17f 0x212a}`},
	{`[[:lower:]]`, `cc{0x41-0x5a 0x61-0x7a 0x17f 0x212a}`},
}

func TestParseFoldCase(t *testing.T) {
	testParseDump(t, foldcaseTests, FoldCase)
}

var literalTests = []parseTest{
	{"(|)^$.[*+?]{5,10},\\", "str{(|)^$.[*+?]{5,10},\\}"},
}

func TestParseLiteral(t *testing.T) {
	testParseDump(t, literalTests, Literal)
}