[libcxx-commits] [libcxx] [libc++][ranges] Add `convertible_to` test case for `enumerate_view` iterator ctor test (PR #212044)

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<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: Lucas Mellone (lknknm)

<details>
<summary>Changes</summary>

Follows up the comment https://github.com/llvm/llvm-project/pull/73617/changes#r1416641551 from https://github.com/llvm/llvm-project/pull/73617

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Full diff: https://github.com/llvm/llvm-project/pull/212044.diff


1 Files Affected:

- (modified) libcxx/test/std/ranges/range.adaptors/range.enumerate/iterator/ctor.convert.pass.cpp (+1) 


``````````diff
diff --git a/libcxx/test/std/ranges/range.adaptors/range.enumerate/iterator/ctor.convert.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.enumerate/iterator/ctor.convert.pass.cpp
index f441de92f6a60..083b01e178daa 100644
--- a/libcxx/test/std/ranges/range.adaptors/range.enumerate/iterator/ctor.convert.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.enumerate/iterator/ctor.convert.pass.cpp
@@ -43,6 +43,7 @@ constexpr void test() {
   };
 
   static_assert(std::is_convertible_v<EnumerateIterator, EnumerateConstIterator>);
+  static_assert(std::convertible_to<EnumerateIterator, EnumerateConstIterator>);
 
   std::array array{0, 84, 2, 3, 4};
   auto view = make_enumerate_view(array.begin(), array.end());

``````````

</details>


https://github.com/llvm/llvm-project/pull/212044