[llvm] [BOLT][DWARF] Skip processing DWARF CUs with a DWO ID but no DWO name. (PR #154749)

[Maksim Panchenko via llvm-commits]

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@@ -217,7 +217,7 @@ class DIEBuilder {
                                std::optional<BOLTDWARF5AccelTableData *> Parent,
                                uint32_t NumberParentsInChain);
 
-  void registerUnit(DWARFUnit &DU, bool NeedSort);
+  bool registerUnit(DWARFUnit &DU, bool NeedSort);
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maksfb wrote:

Let's document the return value.

https://github.com/llvm/llvm-project/pull/154749