Cachegrind cleanups:
- Remove some unnecessary assertions.
- Add in some new ones.
- Make things more concise and readable by factoring out things like
  "cgs->events[i+1]" into things like "ev2" in flushEvents().



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4936 a5019735-40e9-0310-863c-91ae7b9d1cf9
1 file changed