Bug 960350: Display untranslated symbols correctly after merging profiles.

Also, set off the pid from the address with a colon instead of
hard-coding a field width, in case we ever get >16-bit pids.
Apparently debug builds need uname?
_PR_INET6_PROBE considered harmful
Disable broken assertion. FIXME.
Bug 914561: a draft of enterjit stack marking, from :nbp.
Bug 914561: assorted fixes for the enterJIT SPS instrumentation
Attempt at restarting unwinding from EnterJit frame
More stuff that doesn't work
Make broken stuff slightly less broken
I think it almost works now?
Fix conditions on spsFixupOSR. FIXME: should these move into masm?
Fix assorted stuff: rooting and not-ARM.  Not done yet.
Fix stuff that broke x64 build
Clean up the sps jit masm stuff