+ * version 8: added TYPE_RUNTIME and JIT helpers/trampolines
+ * version 9: added MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING
+ * version 10: added TYPE_COVERAGE
+ * version 11: added thread ID to TYPE_SAMPLE_HIT
+ added more load/unload events
+ unload for class
+ unload for image
+ load/unload for appdomain
+ load/unload for contexts
+ load/unload/name for assemblies
+ removed TYPE_LOAD_ERR flag (profiler never generated it, now removed from the format itself)
+ added TYPE_GC_HANDLE_{CREATED,DESTROYED}_BT
+ TYPE_JIT events are no longer guaranteed to have code start/size info (can be zero)