Move Transaction logs to arena allocator.
And change some containers to reduce memory usage.
Also update `SafeMap` with some C++17 functions, namely all
`erase()` and `extract()` overloads and `insert()` overloads
taking a "node". The `extract()` and `insert()` overloads
are convenient to avoid allocation/dealocation when updating
the key of an entry.
Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Bug: 181943478
Change-Id: I791d00598ac288b1f31c92daa63b5b3dcf6b41fa
10 files changed