[llvm] [LLVM][DWARF] Refactor code for generating DWARF V5 .debug_names acce… (PR #82264)

[Felipe de Azevedo Piovezan via llvm-commits]

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@@ -613,6 +613,24 @@ enum AcceleratorTable {
   DW_hash_function_djb = 0u
 };
 
+// Uniquify the string hashes and calculate the bucket count for the
+// DWARF v5 Accelerator Table.
+inline uint32_t
+ComputeDebugNamesUniqueHashes(SmallVector<uint32_t, 0> &hashes) {
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felipepiovezan wrote:

We avoid putting the SmallSize of SmallVectors in the interface, using SmallVectorImpl instead.
However, this function should just use a `MutableArrayRef<uint32_t>` instead, to communicate the fact that we are not inserting nor removing from the vector.

https://github.com/llvm/llvm-project/pull/82264