pkg go/token, method (*FileSet) AddFile(string, int, int) *File
pkg go/token, method (*FileSet) Base() int
pkg go/token, method (*FileSet) File(Pos) *File
pkg go/token, method (*FileSet) Iterate(func(*File) bool)
pkg go/token, method (*FileSet) Position(Pos) Position
pkg go/token, method (*FileSet) Read(func(interface{}) error) error
pkg go/token, method (*FileSet) Write(func(interface{}) error) error

pkg go/ast, const Lbl = 6
pkg go/ast, const Pkg = 1
pkg go/ast, const RECV = 2
pkg go/ast, const SEND = 1
pkg go/ast, const Typ = 3
pkg go/ast, const Var = 4
pkg go/ast, func NewCommentMap(*token.FileSet, Node, []*CommentGroup) CommentMap
pkg go/ast, method (CommentMap) Comments() []*CommentGroup
pkg go/ast, method (CommentMap) Filter(Node) CommentMap
pkg go/ast, method (CommentMap) String() string