Destructors can be called on shared objects

.gitignore

@@ -13,6 +13,7 @@ src/dmd.exe
 -.DS_Store
 -trace.def
 -trace.log
+*.lst
 
 # Visual Studio files
 *.exe

src/ddmd/declaration.d

@@ -2192,6 +2192,11 @@ extern (C++) class VarDeclaration : Declaration
                  */
                 e.type = e.type.mutableOf();
 
+                // Enable calling destructors on shared objects.
+                // The destructor is always a single, non-overloaded function,
+                // and must serve both shared and non-shared objects.
+                e.type = e.type.unSharedOf;
+
                 e = new DotVarExp(loc, e, sd.dtor, false);
                 e = new CallExp(loc, e);
             }

test/compilable/shared_destructor.d

@@ -0,0 +1,21 @@
+struct MaybeShared
+{
+    this(this T)()
+    {
+
+    }
+
+    ~this()
+    {
+
+    }
+}
+
+void main() {
+    {
+        auto aboutToDie = MaybeShared();
+    }
+    {
+        auto aboutToDie = shared MaybeShared();
+    }
+}