* Log OldBinary even if there are no trace files
DeterminismCheck and OldBinary attributes don't actually depend on
information in the ProgramStart event, so we can add them
unconditionally.
* Add JoshuaSeed attribute to Test element in test harness
* Add NoTraceFilesFound event in test harness
There's already something similar: NoTraceFileGenerated. It appears that
the original author only wants to log that if the process exited 0
though. I'm not sure what the reason for that is so I think it's safer
to add a new event. This will make it more clear if say an old binary is
corrupt.
* Set default for USE_JEMALLOC initially in ConfigureCompiler
Instead of trying to change the value later on. This fixes the valgrind
build, which was previously incorrectly getting jemalloc involved.
* Check aligned_alloc result for null
And OOM if so - don't assert
* Check that we can allocate magazines with no internal fragmentation
We may want to do this so that the jemalloc heap profiler has some
knowledge of FastAlloc
* Populate TestFile field for noSim tests in TestHarness
* Remove handling for nonexistent "ActualRun"
