Fix Issue 23129 - Don't re-initialize D class instances in destroy!false()

When it's explicitly *not* requested.

Author: kinke

src/object.d

@@ -4428,7 +4428,7 @@ nothrow @safe @nogc unittest
     }
 }
 
-private extern (C) void rt_finalize(void *data, bool det=true) nothrow;
+private extern (C) void rt_finalize2(void* p, bool det = true, bool resetMemory = true) nothrow;
 
 /// ditto
 void destroy(bool initialize = true, T)(T obj) if (is(T == class))
@@ -4448,7 +4448,7 @@ void destroy(bool initialize = true, T)(T obj) if (is(T == class))
     {
         // Bypass overloaded opCast
         auto ptr = (() @trusted => *cast(void**) &obj)();
-        rt_finalize(ptr);
+        rt_finalize2(ptr, true, initialize);
     }
 }
 
@@ -4723,6 +4723,25 @@ nothrow unittest
     destroy(B.init);
 }
 
+// make sure destroy!false skips re-initialization
+unittest
+{
+    static struct S { int x; }
+    static class C { int x; }
+    static extern(C++) class Cpp { int x; }
+
+    static void test(T)(T inst)
+    {
+        inst.x = 123;
+        destroy!false(inst);
+        assert(inst.x == 123, T.stringof);
+    }
+
+    test(S());
+    test(new C());
+    test(new Cpp());
+}
+
 /// ditto
 void destroy(bool initialize = true, T)(ref T obj)
 if (__traits(isStaticArray, T))