One target a definition's edge names, with the source type of the edge's step: a tab-definition target is a tab entry or a push by that source, told apart with the same set the runtime uses (tabEntryIsPushed).
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One target a definition's edge names, with the source type of the edge's step: a tab-definition target is a tab entry or a push by that source, told apart with the same set the runtime uses (tabEntryIsPushed).