[libcxx] [flang] [libc] [clang-tools-extra] [llvm] [clang] [compiler-rt] [mlir] Make SmallVectorImpl destructor protected (PR #71439)

[Mehdi Amini via cfe-commits]

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@@ -95,7 +95,7 @@ class SerializeToHsacoPass
   std::unique_ptr<std::vector<char>>
   serializeISA(const std::string &isa) override;
 
-  std::unique_ptr<SmallVectorImpl<char>> assembleIsa(const std::string &isa);
+  std::unique_ptr<SmallVector<char, 16>> assembleIsa(const std::string &isa);
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joker-eph wrote:

@krzysz00 can you change this ahead of the current PR?

https://github.com/llvm/llvm-project/pull/71439