worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable
      by such Contributor that are necessarily infringed by their

pkg go/build, const FindOnly ImportMode
pkg go/build, func ArchChar(string) (string, error)
pkg go/build, func Import(string, string, ImportMode) (*Package, error)
pkg go/build, func ImportDir(string, ImportMode) (*Package, error)
pkg go/build, func IsLocalImport(string) bool
pkg go/build, method (*Context) Import(string, string, ImportMode) (*Package, error)
pkg go/build, method (*Context) ImportDir(string, ImportMode) (*Package, error)

pkg go/token, const GTR = 41
pkg go/token, const HighestPrec = 7
pkg go/token, const IDENT = 4
pkg go/token, const IF = 74
pkg go/token, const ILLEGAL = 0
pkg go/token, const IMAG = 7
pkg go/token, const IMPORT = 75
pkg go/token, const INC = 37
pkg go/token, const INT = 5
pkg go/token, const INTERFACE = 76
pkg go/token, const LAND = 34
pkg go/token, const LBRACE = 51
pkg go/token, const LBRACK = 50