[clang] [Clang] Address post commit feedbacks in #89906 (PR #90495)

[via cfe-commits]

https://github.com/cor3ntin created https://github.com/llvm/llvm-project/pull/90495

* Fix a leak
* Fix a maybe unused warning
* Fix incorrect cxx_status entry

>From 9d29106b06e8e2b0b388c755b81d4e1d9b217976 Mon Sep 17 00:00:00 2001
From: Corentin Jabot <corentinjabot at gmail.com>
Date: Mon, 29 Apr 2024 18:34:49 +0200
Subject: [PATCH] [Clang] Address post commit feedback in #89906

* Fix a leak
* Fix a maybe unused warning
* Fix incorrect cxx_status entry
---
 clang/include/clang/Sema/DeclSpec.h | 3 +++
 clang/lib/AST/DeclBase.cpp          | 2 +-
 clang/www/cxx_status.html           | 4 ++--
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/clang/include/clang/Sema/DeclSpec.h b/clang/include/clang/Sema/DeclSpec.h
index 760c7980be52bd..d641e7c3b92d5e 100644
--- a/clang/include/clang/Sema/DeclSpec.h
+++ b/clang/include/clang/Sema/DeclSpec.h
@@ -1814,6 +1814,9 @@ class DecompositionDeclarator {
   ~DecompositionDeclarator() {
     if (DeleteBindings)
       delete[] Bindings;
+    else
+      llvm::for_each(llvm::MutableArrayRef(Bindings, NumBindings),
+                     [](Binding &B) { B.Attrs.reset(); });
   }
 
   void clear() {
diff --git a/clang/lib/AST/DeclBase.cpp b/clang/lib/AST/DeclBase.cpp
index f341c74cf86e37..03e1055251c24f 100644
--- a/clang/lib/AST/DeclBase.cpp
+++ b/clang/lib/AST/DeclBase.cpp
@@ -1115,7 +1115,7 @@ int64_t Decl::getID() const {
 
 const FunctionType *Decl::getFunctionType(bool BlocksToo) const {
   QualType Ty;
-  if (const auto *D = dyn_cast<BindingDecl>(this))
+  if (isa<BindingDecl>(this))
     return nullptr;
   else if (const auto *D = dyn_cast<ValueDecl>(this))
     Ty = D->getType();
diff --git a/clang/www/cxx_status.html b/clang/www/cxx_status.html
index d58c35b72c22bb..0996abc2405857 100755
--- a/clang/www/cxx_status.html
+++ b/clang/www/cxx_status.html
@@ -177,7 +177,7 @@ <h2 id="cxx26">C++2c implementation status</h2>
  <tr>
   <td>Attributes for Structured Bindings</td>
   <td><a href="https://wg21.link/P0609R3">P0609R3</a></td>
-  <td class="none" align="center">No</td>
+  <td class="none" align="center">Clang 19</td>
  </tr>
  <tr>
   <td>Module Declarations Shouldn’t be Macros</td>
@@ -187,7 +187,7 @@ <h2 id="cxx26">C++2c implementation status</h2>
  <tr>
   <td>Trivial infinite loops are not Undefined Behavior</td>
   <td><a href="https://wg21.link/P2809R3">P2809R3</a> (<a href="#dr">DR</a>)</td>
-  <td class="unreleased" align="center">Clang 19</td>
+  <td class="unreleased" align="center">No</td>
  </tr>
  <tr>
   <td>Erroneous behaviour for uninitialized reads</td>