[clang] [AST] Remove an unnecessary cast (NFC) (PR #149338)

[Shilei Tian via cfe-commits]

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@@ -610,7 +610,7 @@ void StmtPrinter::VisitObjCAtTryStmt(ObjCAtTryStmt *Node) {
     }
   }
 
-  if (auto *FS = static_cast<ObjCAtFinallyStmt *>(Node->getFinallyStmt())) {
+  if (auto *FS = Node->getFinallyStmt()) {
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shiltian wrote:

If there is no cast, then we'd want to use the type instead of `auto` here.

https://github.com/llvm/llvm-project/pull/149338