Add Dynamic Trip Count Prediction for SpiderMonkey.

[+] Adds missing files for dynamic trip count prediction.
[!] Most code sourced from: https://code.google.com/p/dynamic-loop-prediction/
[!] This commit is to fix commit c82f4bd9c9e13c0db8a8bdce6a2355eabc277e68 in which these files should have been pushed.