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...tep Objective-C ABI version 2. [r332950](https://reviews.llvm.org/rL332950). * `__builtin_classify_type` support was reworked to better match GCC. [r333126](https://reviews.llvm.org/rL333126). * The clang-interpreter example was converted to use the ORC JIT API. [r333302](https://reviews.llvm.org/rL333302). ## Other project commits * The compiler-rt CMake build system was updated to support libc++ as the Clang default stdlib. [r333010](https://reviews.llvm.org/rL333010). * LLDB gained support for resolving variable symbols in PDB. [r333049](https://reviews.llvm.org/rL333049).