Squashed 'org.metaborg.spoofax.benchmark.core/dep/java-sizeof/' content from commit d594822

git-subtree-dir: org.metaborg.spoofax.benchmark.core/dep/java-sizeof
git-subtree-split: d5948223ab4637dd823a3f69b3a8ea5155b9ed40
Merge commit 'd98d5689c7b3d0ad255fb2703524fc5bfab4e6ee' as 'org.metaborg.spoofax.benchmark.core/dep/java-sizeof'
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