tree b9e829887d791bfa864ed1857418439cfc490e44
parent af606cd2dc5b376b85f6ca66d6a72becdcf8f7a6
author Han Seoul-Oh <laughinghan@gmail.com> 1460077682 -0700
committer Han Seoul-Oh <laughinghan@gmail.com> 1460077682 -0700

Fix sin^2(x), and sin^2 x as cursor moves through #visual

See GitHub comment for screenshots/GIFs (source copied below).

Before (notice space before paren):
<img width="176" alt="static_before" src="https://cloud.githubusercontent.com/assets/225809/14372074/280414d4-fcf2-11e5-8652-fc44eb8eb3cb.png">
![cursor_after](https://cloud.githubusercontent.com/assets/225809/14372075/2806fe56-fcf2-11e5-9779-a4d49f573cb1.gif)

After:
<img width="183" alt="static_after" src="https://cloud.githubusercontent.com/assets/225809/14372073/280404e4-fcf2-11e5-94ff-ec9fbc59f41d.png">
![cursor_before](https://cloud.githubusercontent.com/assets/225809/14372072/28037ec0-fcf2-11e5-87a2-9d86b1c40677.gif)