Fixed crash in Allocators Benchmark multithreaded test due to the HPHA schema not having proper multithread protection around the `mFreeTree` member in `tree_get_unused_memory` function.
The `mFreeTree intrusive set is able to modified on multiple threads.
Replaced the custom intrusive_list implementation n HPHA schema with AZStd::intrusive_list
Added a `ScopedAllocatorBenchmarkEnvironment` class to provide an RAI mechanism for initializing the SystemAllocator in Benchmark Test
Rermoved the `AzCoreBenchmarkEnvironment` in lieu of the `ScopedAllocatorBenchmarkEnvironment` class
Fixed assert when running Allocator Benchmarks in debug due to mismatch PauseTiming/ResumeTiming in Allocator Benchmark Fixtures
Added `ScopedRegisterBenchmarkEnvironment` RAII class to provide lifetime guarantees on BenchmarkEnvironments registered via the `AZ_UNIT_TEST_HOOK`
Initialized the intrusive_multiset_node members to nullptr in all build configurations instead of only debug as the cost negligible and it is useful for debugging.
fixes LYN-10210
Signed-off-by: lumberyard-employee-dm <56135373+lumberyard-employee-dm@users.noreply.github.com>
lumberyard-employee-dm
6f52fcb9f0