Some performance improvements to Poset#22

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fabioz wants to merge 4 commits intobdcht:masterfrom fabioz:master

+94-27

Commits on Apr 22, 2020

Profiling grandalf: creating graph is slow due to Poset creating temporary objects for __eq__.
fabioz
committed
Fix ValueError (TODO: Must create test-case for this case and check better solution).
fabioz
committed

Commits on Apr 26, 2020

org.eclipse.core.resources.prefs
fabioz
committed

Commits on Aug 10, 2024

Update pydevproject to use python interpreter version.
fabioz
committed