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b58db2293d
DIE doesn't need to store a pointer to its parent: we can traverse the DIE tree only with functions getFirstChild() and getSibling(). Parents must be known only when we construct the tree. Rewrite setDIERelations() procedure in a more straightforward way, and get rid of lots of now unused DIEMinimal methods. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207563 91177308-0d34-0410-b5e6-96231b3b80d8
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