[llvm] [DWARFYAML] Implement debug_names support (PR #79666)

[Felipe de Azevedo Piovezan via llvm-commits]

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@@ -118,6 +118,28 @@ struct Unit {
   std::vector<Entry> Entries;
 };
 
+struct IdxForm {
+  llvm::dwarf::Index Idx;
+  llvm::dwarf::Form Form;
+};
+
+struct DebugNameAbbreviation {
+  llvm::yaml::Hex64 Code;
+  llvm::dwarf::Tag Tag;
+  std::vector<IdxForm> Indices;
+};
+
+struct DebugNameEntry {
+  llvm::yaml::Hex32 NameStrp;
+  llvm::yaml::Hex64 Code;
+  std::vector<llvm::yaml::Hex64> Values;
+};
+
+struct DebugNamesSection {
+  std::vector<DebugNameAbbreviation> Abbrevs;
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felipepiovezan wrote:

that would disable the compiler's ability to move objects in the vector when it needs to resize https://godbolt.org/z/8hT71Khq5

https://github.com/llvm/llvm-project/pull/79666