Fix goto line motions with delete, yank, and change

Using G in conjunction with a delete, yank, or change would incorrectly jump the wrong line. There was no differentiation between absolute and relative line movements. This change will now jump to the proper absolute line when using G along with delete, yank, and change.
This might be simpler as just:

```coffee
motion.isLinewise ?= motion.composedObject?.isLinewise
```