fix interface jump table binding, when interface is used as parameter

[douyixuan]

type Reader interface{
    Read(p []byte) (uint32, error) 
}
type Buffer table {
    buf      []byte
    off      uint32
    lastRead uint64
}
func (b *Buffer) Read(p []byte) (n uint32, err error) {

}
func foo(r Reader) {
    n, err := r.Read()
}
func main() {
     var b Buffer
     foo(b)
     return 0
}