renameIdents(f, "syntax->ast")
	},
	"chan.go":         nil,
	"const.go":        fixTokenPos,
	"context.go":      nil,
	"context_test.go": nil,
	"conversions.go":  nil,
	"errors_test.go":  func(f *ast.File) { renameIdents(f, "nopos->noposn") },
	"errsupport.go":   nil,
	"gccgosizes.go":   nil,
	"gcsizes.go":      func(f *ast.File) { renameIdents(f, "IsSyncAtomicAlign64->_IsSyncAtomicAlign64") },