the get/set from property into simplehash were too big to get inlined.  ...

...I added these little methods to bypass the larger ones.

You can view the optimizing log from:

/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --js-flags="--trace-opt --trace-deopt --trace-inlining --code-comments"

We were getting the message "Target text too big", so it implied the function was too large.  Now it gets inlined a lot.  Not sure if this is worth the effort.

@hornairs @kristianpd 

inlined:
![image](https://f.cloud.github.com/assets/1743173/488076/cf615d74-b973-11e2-97c6-c46bcffa7506.png)

not inlined:

![image](https://f.cloud.github.com/assets/1743173/488078/e45dac0a-b973-11e2-9bb9-b6e3da37fd8b.png)