ensure that, in the event an Application does not supply the
   function or data, the facility still operates, and performs
   whatever part of its purpose remains meaningful, or

   b) under the GNU GPL, with none of the additional permissions of
   this License applicable to that copy.

  3. Object Code Incorporating Material from Library Header Files.

pkg go/token, method (*File) Name() string
pkg go/token, method (*File) Offset(Pos) int
pkg go/token, method (*File) Pos(int) Pos
pkg go/token, method (*File) Position(Pos) Position
pkg go/token, method (*File) SetLines([]int) bool
pkg go/token, method (*File) SetLinesForContent([]uint8)
pkg go/token, method (*File) Size() int
pkg go/token, method (*FileSet) AddFile(string, int, int) *File
pkg go/token, method (*FileSet) Base() int