llvm-project

58efc426 - [LLDB] Move Itanium language runtime to C++ language runtime (#169225)

[LLDB] Move Itanium language runtime to C++ language runtime (#169225) In order to support the Microsoft ABI alongside the Itanium one in the same process from different DLLs, this moves the Itanium ABI runtime plugin to the C++ language runtime (see https://github.com/llvm/llvm-project/pull/168941#discussion_r2547684264). Before this PR, the C++ language runtime wasn't a plugin. Instead, its functionality was provided by the Itanium ABI plugin. All Itanium specific methods are moved to a new class `ItaniumABIRuntime`. This includes resolving the dynamic type, setting exception filters, and getting the exception object. The other methods were added to `CPPLanguageRuntime`. `language cplusplus demangle` moved to `CommandObjectCPlusPlus`. The Clang REPL depended on the C++ runtime. Now that it's a plugin, this failed the layering check. Since the REPL doesn't use the C++ runtime, I removed the dependency.