Add branch instability and type instability to jsfunfuzz.  Also, change some exclusions.
Add branch instability and type instability to jsfunfuzz.  Also, change some exclusions.

MozillaSecurity/funfuzz,MozillaSecurity/funfuzz,nth10sd/funfuzz,nth10sd/funfuzz,MozillaSecurity/funfuzz,nth10sd/funfuzz