[llvm] [ADT] Add DenseSet(llvm::from_t, Range) (PR #131832)

[Jakub Kuderski via llvm-commits]

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@@ -33,6 +33,12 @@ TEST(DenseSetTest, DoubleEntrySetTest) {
   EXPECT_EQ(0u, set.count(2));
 }
 
+TEST(DenseSetTest, CtorRange) {
+  constexpr unsigned Args[] = {3, 1, 2};
+  llvm::DenseSet<unsigned> set(llvm::from_range, Args);
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kuhar wrote:

Could you also add a test for `SmallDenseSet`?

https://github.com/llvm/llvm-project/pull/131832