[clang] [win][clang] Align scalar deleting destructors with MSABI (PR #139566)

[Tom Honermann via cfe-commits]

================
@@ -2886,6 +2887,16 @@ class CXXDestructorDecl : public CXXMethodDecl {
     return getCanonicalDecl()->OperatorDelete;
   }
 
+  const FunctionDecl *getOperatorGlobalDelete() const {
+    return getCanonicalDecl()->OperatorGlobalDelete;
+  }
+
+  void setOperatorGlobalDelete(FunctionDecl *OD) {
+    auto *First = cast<CXXDestructorDecl>(getCanonicalDecl());
----------------
tahonermann wrote:

```suggestion
    auto *CanonicalDecl = cast<CXXDestructorDecl>(getCanonicalDecl());
```

https://github.com/llvm/llvm-project/pull/139566