[clang] [Clang] Improve `getReplacedTemplateParameterList()` const correctness (PR #131165)

[Boaz Brickner via cfe-commits]

https://github.com/bricknerb created https://github.com/llvm/llvm-project/pull/131165

None

>From c7b3a1c83ca0bd2631e9dcfcce0fe672d1140cce Mon Sep 17 00:00:00 2001
From: Boaz Brickner <brickner at google.com>
Date: Thu, 13 Mar 2025 17:01:26 +0100
Subject: [PATCH] [Clang] Improve `getReplacedTemplateParameterList()` const
 correctness

---
 clang/include/clang/AST/DeclTemplate.h | 2 +-
 clang/lib/AST/DeclTemplate.cpp         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang/include/clang/AST/DeclTemplate.h b/clang/include/clang/AST/DeclTemplate.h
index b82f75dd63fa5..b27e698236c02 100644
--- a/clang/include/clang/AST/DeclTemplate.h
+++ b/clang/include/clang/AST/DeclTemplate.h
@@ -3392,7 +3392,7 @@ inline std::optional<unsigned> getExpandedPackSize(const NamedDecl *Param) {
 
 /// Internal helper used by Subst* nodes to retrieve the parameter list
 /// for their AssociatedDecl.
-TemplateParameterList *getReplacedTemplateParameterList(Decl *D);
+TemplateParameterList *getReplacedTemplateParameterList(const Decl *D);
 
 } // namespace clang
 
diff --git a/clang/lib/AST/DeclTemplate.cpp b/clang/lib/AST/DeclTemplate.cpp
index b8fe19c69dc29..c0f5be51db5f3 100644
--- a/clang/lib/AST/DeclTemplate.cpp
+++ b/clang/lib/AST/DeclTemplate.cpp
@@ -1642,7 +1642,7 @@ void TemplateParamObjectDecl::printAsInit(llvm::raw_ostream &OS,
   getValue().printPretty(OS, Policy, getType(), &getASTContext());
 }
 
-TemplateParameterList *clang::getReplacedTemplateParameterList(Decl *D) {
+TemplateParameterList *clang::getReplacedTemplateParameterList(const Decl *D) {
   switch (D->getKind()) {
   case Decl::Kind::CXXRecord:
     return cast<CXXRecordDecl>(D)