[all-commits] [llvm/llvm-project] 2fcf1f: [MsDemangle] Use LLVM style RTTI for AST nodes (#1...

[nerix via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2fcf1f8279b846930203fa05f71c6ade293709b1
      https://github.com/llvm/llvm-project/commit/2fcf1f8279b846930203fa05f71c6ade293709b1
  Author: nerix <nerixdev at outlook.de>
  Date:   2025-07-04 (Fri, 04 Jul 2025)

  Changed paths:
    M llvm/include/llvm/Demangle/MicrosoftDemangleNodes.h

  Log Message:
  -----------
  [MsDemangle] Use LLVM style RTTI for AST nodes (#143410)

The inheritance hierarchy for `llvm::ms_demangle::Node`
([doxygen](https://llvm.org/doxygen/structllvm_1_1ms__demangle_1_1Node.html))
is a bit more involved. One thing that's missing without RTTI is the
ability to determine if a node is a symbol, identifier, or type (or one
would need to check for every kind).

This PR adds support for `dyn_cast`, `isa`, and friends to
`llvm::ms_demangle::Node`. As the type already has a `kind()`, this
mainly adds `classof` to the nodes as well as some start and end markers
in the `NodeKind` enum.



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