Backport "Fix deadlock in initialization of CoreBTypes using Lazy container" to LTS #21162
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…9298) Replaces #19297 and fixes #19293 The deadlocks are now fixed by introduction of `PostProcessorFrontendAccess.Lazy[T]` container for which initialization is synchronized with the frontend Context, while providing a thread-safe access lacking in original solution. It now also audits where the unrestricted access to context was used and replaces these usages with safer access. Reverts #19292 [Cherry-picked 33bdaac][modified]
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No regressions detected in the community build up to lts-21070. |
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Backports #19298 to the LTS branch.
PR submitted by the release tooling.
[skip ci]