llvm-project

19dcec97 - [CIR] Support inline C++ member function definitions (#142484)

[CIR] Support inline C++ member function definitions (#142484) This change upstreams the code to support emitting inline C++ function definitions, including the ASTConsumer handler for inline definitions and the code to load the 'this' pointer. This necessitates introducing the Itanium CXXABI class. No other CXXABI subclasses are supported at this time. The Itanium CXXABI is used for AppleARM64, which will require its own handler for a few special cases (such as array cookies) later.