[test] Fix aggregate initialization incompatible with c++20

In C++20, types that declare or delete any constructors are no longer aggregates, breaking compilation of many existing uses of aggregate initialization. In this test, provide a one-arg constructor so that `StructWithoutCopyOrMove{1}` still works.

diff --git a/llvm/unittests/Support/HashBuilderTest.cpp b/llvm/unittests/Support/HashBuilderTest.cpp
index 2600744..2e27e4b 100644 (file)
--- a/llvm/unittests/Support/HashBuilderTest.cpp
+++ b/llvm/unittests/Support/HashBuilderTest.cpp
@@ -134,6 +134,7 @@ void addHash(llvm::HashBuilderImpl<HasherT, Endianness> &HBuilder,
 struct StructWithoutCopyOrMove {
   int I;
   StructWithoutCopyOrMove() = default;
+  explicit StructWithoutCopyOrMove(int I) : I(I) {}
   StructWithoutCopyOrMove(const StructWithoutCopyOrMove &) = delete;
   StructWithoutCopyOrMove &operator=(const StructWithoutCopyOrMove &) = delete;