Trade: de-inline virtual destructor.

Less generated code.

src/Trade/ObjectData3D.cpp

@@ -32,6 +32,8 @@ ObjectData3D::ObjectData3D(std::vector<UnsignedInt> children, const Matrix4& tra
 
 ObjectData3D::ObjectData3D(ObjectData3D&&) = default;
 
+ObjectData3D::~ObjectData3D() = default;
+
 ObjectData3D& ObjectData3D::operator=(ObjectData3D&&) = default;
 
 #ifndef DOXYGEN_GENERATING_OUTPUT

src/Trade/ObjectData3D.h

@@ -75,7 +75,7 @@ class MAGNUM_EXPORT ObjectData3D {
         ObjectData3D(ObjectData3D&&);
 
         /** @brief Destructor */
-        virtual ~ObjectData3D() {}
+        virtual ~ObjectData3D();
 
         /** @brief Copying is not allowed */
         ObjectData3D& operator=(const ObjectData3D&) = delete;