[llvm] [Support] Use an inherited constructor in DOTGraphTraits (NFC) (PR #164056)

[Kazu Hirata via llvm-commits]

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@@ -164,7 +164,7 @@ struct DefaultDOTGraphTraits {
 ///
 template <typename Ty>
 struct DOTGraphTraits : public DefaultDOTGraphTraits {
-  DOTGraphTraits (bool simple=false) : DefaultDOTGraphTraits (simple) {}
+  using DefaultDOTGraphTraits::DefaultDOTGraphTraits;
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kazutakahirata wrote:

Good point!  I'll do a sweep across `ADT` and `Support`.  Thanks!


https://github.com/llvm/llvm-project/pull/164056