[llvm] [SelectionDAG] Unique VT lists in a DenseSet instead of a FoldingSet (PR #219364)

[Kazu Hirata via llvm-commits]

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@@ -247,7 +212,21 @@ class SelectionDAG {
   std::set<EVT, EVT::compareRawBits> EVTs;
 
   /// List of non-single value types.
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kazutakahirata wrote:

You might want to consider removing this comment in favor of the next two lines.  It's a bit strange to say the same thing twice.
```suggestion
```

https://github.com/llvm/llvm-project/pull/219364