[clang-tools-extra] [clang-doc][NFC] Use isa<> over dyn_cast (PR #136445)

[Paul Kirth via cfe-commits]

https://github.com/ilovepi created https://github.com/llvm/llvm-project/pull/136445

None

>From bb22253f93023fa2accd950fed8221caabeddae6 Mon Sep 17 00:00:00 2001
From: Paul Kirth <paulkirth at google.com>
Date: Sat, 19 Apr 2025 10:49:22 -0700
Subject: [PATCH] [clang-doc][NFC] Use isa<> over dyn_cast

---
 clang-tools-extra/clang-doc/Serialize.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang-tools-extra/clang-doc/Serialize.cpp b/clang-tools-extra/clang-doc/Serialize.cpp
index 1dcccf3c3c2ab..bc31621f4a92e 100644
--- a/clang-tools-extra/clang-doc/Serialize.cpp
+++ b/clang-tools-extra/clang-doc/Serialize.cpp
@@ -246,9 +246,9 @@ static TypeInfo getTypeInfoForType(const QualType &T,
     return TypeInfo(Reference(SymbolID(), T.getAsString(Policy)));
 
   InfoType IT;
-  if (dyn_cast<EnumDecl>(TD)) {
+  if (isa<EnumDecl>(TD)) {
     IT = InfoType::IT_enum;
-  } else if (dyn_cast<RecordDecl>(TD)) {
+  } else if (isa<RecordDecl>(TD)) {
     IT = InfoType::IT_record;
   } else {
     IT = InfoType::IT_default;