One of the resharding fuzzer tests we'd like to enable in Evergreen would be a 6-shard, 2-node replica set shard, sharded cluster. With --storageEngineCacheSizeGB=1 this is more mongod processes than can be expected to safely run on a -small distro with 7.5GB of RAM.

I'd want evergreen_gen_fuzzer_tests.py to support an use_large_distro: "true"-like option for all the build variants which currently run the resharding_fuzzer_inplace task so I can use large instance sizes for specific fuzzer tasks.