pkg go/constant, func Make(interface{}) Value
pkg go/constant, func Val(Value) interface{}
pkg go/token, func IsExported(string) bool
pkg go/token, func IsIdentifier(string) bool
pkg go/token, func IsKeyword(string) bool
pkg go/types, func CheckExpr(*token.FileSet, *Package, token.Pos, ast.Expr, *Info) error
pkg log, func Writer() io.Writer
pkg log/syslog (netbsd-arm64-cgo), const LOG_ALERT = 1

pkg go/token, method (*Position) IsValid() bool
pkg go/token, method (Pos) IsValid() bool
pkg go/token, method (Position) String() string
pkg go/token, method (Token) IsKeyword() bool
pkg go/token, method (Token) IsLiteral() bool
pkg go/token, method (Token) IsOperator() bool
pkg go/token, method (Token) Precedence() int
pkg go/token, method (Token) String() string