llvm-project

9b493dca - [ADT] Deprecate the redirection from SmallSet to SmallPtrSet (Take 2) (#155078)

[ADT] Deprecate the redirection from SmallSet to SmallPtrSet (Take 2) (#155078) This patch deprecates the SmallSet specialization for pointer types, which redirects to SmallPtrSet. My previous attempt in #154891 broke downstream users. Adding user-defined constructors with LLVM_DEPRECATED inadvertently caused the compiler to delete the copy and move assignment operators. This iteration sidesteps the "Rule of Five" issue entirely by introducing an intermediate class, DeprecatedSmallSet. The deprecation attribute is attached to this new class, and SmallSet specialization inherits from it.