[flang-commits] [flang] [flang] Add traits to several AST nodes, NFC (PR #175065)

[Peter Klausler via flang-commits]

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@@ -4011,16 +4011,17 @@ class FirConverter : public Fortran::lower::AbstractConverter {
         }
         const auto &caseRange =
             std::get<Fortran::parser::CaseValueRange::Range>(caseValueRange.u);
-        if (caseRange.lower && caseRange.upper) {
+        auto &[lower, upper]{caseRange.t};
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klausler wrote:

Explicit `const auto &` here and elsewhere would be better practice.

https://github.com/llvm/llvm-project/pull/175065