[9/n][vm-rewrite][Move] Update depth calculation calculation/caching to be threadsafe #21074
+22
−30
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Switching the depth calculation of types to be lazily evaluated when we first encountered the value, coupled with shared package cache, and the types living in this shared package cache meant that the
depth
for a type needed to be made threadsafe since we may need to write to it in a parallel context.This does this by
RwLock
ing thedepth
field and then making the changes from there.