[clang] [Sema] Instantiate destructors for initialized members (PR #128866)

[Aaron Ballman via cfe-commits]

================
@@ -5450,10 +5546,25 @@ bool Sema::SetCtorInitializers(CXXConstructorDecl *Constructor, bool AnyErrors,
            NumInitializers * sizeof(CXXCtorInitializer*));
     Constructor->setCtorInitializers(baseOrMemberInitializers);
 
+    SourceLocation Location = Constructor->getLocation();
+
     // Constructors implicitly reference the base and member
     // destructors.
-    MarkBaseAndMemberDestructorsReferenced(Constructor->getLocation(),
-                                           Constructor->getParent());
+
+    for (CXXCtorInitializer *Initializer : Info.AllToInit) {
+      FieldDecl *Field = Initializer->getAnyMember();
+      if (!Field)
+        continue;
+
+      // C++ [class.base.init]p12:
+      //   In a non-delegating constructor, the destructor for each
+      //   potentially constructed subobject of class type is potentially
+      //   invoked
+      //   ([class.dtor]).
----------------
AaronBallman wrote:

```suggestion
      //   invoked.
```

https://github.com/llvm/llvm-project/pull/128866