Refactor MemoryLimiter to specify tracked 'area' when reserving memor… #774

Job	Run time
Benchmarks / Benchmark (Throughput)	1h 58m 32s
Benchmarks / Benchmark (Cache)	1h 44m 16s
Benchmarks / Benchmark (Latency)	7m 31s
Benchmarks (s3express) / Benchmark (Throughput)	1h 56m 41s
Benchmarks (s3express) / Benchmark (Latency)	7m 19s
	5h 54m 19s

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