bug117.go:13:12: error: reference to undefined field or method
import1.go:9:2: error: redefinition of '.main.bufio'
import1.go:8:2: note: previous definition of '.main.bufio' was here
import1.go:9:2: error: incompatible imported type 'bufio.Error'
interface9.go:25:5: error: incompatible types in assignment (method P requires a pointer)
interface9.go:30:5: error: incompatible types in assignment (method P requires a pointer)