{"CompositeLit", `T@{}`},
	{"CompositeLit", `struct{x, y int}@{}`},

	{"KeyValueExpr", `"foo"@: true`},
	{"KeyValueExpr", `"a"@: b`},

	{"FuncLit", `@func (){}`},
	{"ParenExpr", `@(x)`},
	{"SelectorExpr", `a@.b`},
	{"IndexExpr", `a@[i]`},

	{"SliceExpr", `a@[:]`},
	{"SliceExpr", `a@[i:]`},
	{"SliceExpr", `a@[:j]`},
	{"SliceExpr", `a@[i:j]`},
	{"SliceExpr", `a@[i:j:k]`},

	{"AssertExpr", `x@.(T)`},

// that picks the correct abbrev.
func pvacfgvisit(pvacfg *pvacfgnode, abbrevs map[string]int) ast.Stmt {
	r := &ast.IfStmt{Cond: &ast.BinaryExpr{
		Op: token.EQL,
		X:  &ast.SelectorExpr{X: &ast.Ident{Name: "v"}, Sel: &ast.Ident{Name: "Tag"}},
		Y:  &ast.Ident{Name: "DW_TAG_variable"}}}
	r.Body = &ast.BlockStmt{List: []ast.Stmt{
		pvacfgvisitnode(pvacfg, "DW_TAG_variable", []*pvacfgnode{}, abbrevs),
	}}

	// don't resolve ident yet - it may be a parameter or field name

	if p.tok == token.PERIOD {
		// ident is a package name
		p.next()
		p.resolve(ident)
		sel := p.parseIdent()
		return &ast.SelectorExpr{ident, sel}
	}

	return ident
}

func (p *parser) parseArrayType(ellipsisOk bool) ast.Expr {
	if p.trace {
		defer un(trace(p, "ArrayType"))
	}

	lbrack := p.expect(token.LBRACK)

func checkCopyLocksCallExpr(pass *analysis.Pass, ce *ast.CallExpr) {
	var id *ast.Ident
	switch fun := ce.Fun.(type) {
	case *ast.Ident:
		id = fun
	case *ast.SelectorExpr:
		id = fun.Sel
	}
	if fun, ok := pass.TypesInfo.Uses[id].(*types.Builtin); ok {
		switch fun.Name() {
		case "new", "len", "cap", "Sizeof", "Offsetof", "Alignof":
			return
		}
	}

			case *ir.IndexExpr:
				if ll.X.Type().IsArray() {
					save(&ll.Index)
					l = ll.X
					continue
				}
			case *ir.ParenExpr:
				l = ll.X
				continue
			case *ir.SelectorExpr:
				if ll.Op() == ir.ODOT {
					l = ll.X
					continue
				}
			}
			break
		}

		var name *ir.Name
		switch l.Op() {
		default:
			base.Fatalf("unexpected lvalue %v", l.Op())

var itabTypeField *types.Field

// boundedDotPtr returns a selector expression representing ptr.field
// and omits nil-pointer checks for ptr.
func boundedDotPtr(pos src.XPos, ptr ir.Node, field *types.Field) *ir.SelectorExpr {
	sel := ir.NewSelectorExpr(pos, ir.ODOTPTR, ptr, field.Sym)
	sel.Selection = field
	sel.SetType(field.Type)
	sel.SetTypecheck(1)
	sel.SetBounded(true) // guaranteed not to fault
	return sel
}

}

// AddImplicitDots finds missing fields in obj.field that
// will give the shortest unique addressing and
// modifies the tree with missing field names.
func AddImplicitDots(n *ir.SelectorExpr) *ir.SelectorExpr {
	n.X = typecheck(n.X, ctxType|ctxExpr)
	t := n.X.Type()
	if t == nil {
		return n
	}

	if n.X.Op() == ir.OTYPE {
		return n
	}

	s := n.Sel
	if s == nil {
		return n
	}

			continue
		}
		expr := exprStmt.X
		if isMethodCall(info, expr, "testing", "T", "Parallel") {
			call, _ := expr.(*ast.CallExpr)
			if call == nil {
				continue
			}
			x, _ := call.Fun.(*ast.SelectorExpr)
			if x == nil {
				continue
			}
			id, _ := x.X.(*ast.Ident)
			if id == nil {
				continue
			}
			if info.Uses[id] == tObj {
				afterParallel = true
			}
		}
	}

				t.Errorf("%s: got built-in %s; want %s", src0, bin.Name(), name)
				return
			}
			return // we're done

		case *syntax.ParenExpr:
			fun = p.X // unpack

		case *syntax.SelectorExpr:
			// built-in from package unsafe - ignore details
			return // we're done

		default:
			t.Errorf("%s: invalid function call", src0)
			return
		}
	}

		}
		s, err := strconv.Unquote(lit.Value)
		if err != nil {
			return nil, err
		}
		return []byte(s), nil
	}

	var idType *ast.Ident
	if selector, ok := call.Fun.(*ast.SelectorExpr); ok {
		xIdent, ok := selector.X.(*ast.Ident)
		if !ok || xIdent.Name != "math" {
			return nil, fmt.Errorf("invalid selector type")
		}
		switch selector.Sel.Name {
		case "Float64frombits":