[all-commits] [llvm/llvm-project] ddda05: [clang][NFC] Break out BaseUsingDecl from UsingDecl

[Nathan Sidwell via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ddda05add527f7f92a71f387b927f237334f46d9
      https://github.com/llvm/llvm-project/commit/ddda05add527f7f92a71f387b927f237334f46d9
  Author: Nathan Sidwell <nathan at acm.org>
  Date:   2021-06-07 (Mon, 07 Jun 2021)

  Changed paths:
    M clang-tools-extra/clangd/FindTarget.cpp
    M clang/include/clang/AST/DeclCXX.h
    M clang/include/clang/Basic/DeclNodes.td
    M clang/include/clang/Sema/Sema.h
    M clang/lib/AST/ASTImporter.cpp
    M clang/lib/AST/DeclCXX.cpp
    M clang/lib/CodeGen/CGDebugInfo.cpp
    M clang/lib/CodeGen/CGDebugInfo.h
    M clang/lib/Sema/SemaAccess.cpp
    M clang/lib/Sema/SemaDecl.cpp
    M clang/lib/Sema/SemaDeclCXX.cpp
    M clang/lib/Sema/SemaLookup.cpp
    M clang/lib/Sema/SemaTemplate.cpp
    M clang/tools/libclang/CIndex.cpp

  Log Message:
  -----------
  [clang][NFC] Break out BaseUsingDecl from UsingDecl

This is a pre-patch for adding using-enum support.  It breaks out
the shadow decl handling of UsingDecl to a new intermediate base
class, BaseUsingDecl, altering the decl hierarchy to

def BaseUsing : DeclNode<Named, "", 1>;
  def Using : DeclNode<BaseUsing>;
def UsingPack : DeclNode<Named>;
def UsingShadow : DeclNode<Named>;
  def ConstructorUsingShadow : DeclNode<UsingShadow>;

Differential Revision: https://reviews.llvm.org/D101777