Improve readability: move the line Methods before MethodImpl

Change-Id: Ibbbe95d29cc91cf36765542e55569101aa3ffc43
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit 5f190e4)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

Author: Artemiy-d

src/corelib/tools/qquasivirtual_impl.h

@@ -52,6 +52,8 @@ class QQuasiVirtualInterface
     static constexpr bool passArgAsValue = sizeof(Arg) <= sizeof(size_t)
                                         && std::is_trivially_destructible_v<Arg>;
 
+    template <typename C = Interface> using Methods = typename C::template MethodTemplates<C>;
+
     template <typename ...>
     struct MethodImpl;
 
@@ -115,8 +117,6 @@ class QQuasiVirtualInterface
         using Overridden = R(Subclass::*)(Args...) const;
     };
 
-    template <typename C = Interface> using Methods = typename C::template MethodTemplates<C>;
-
 public:
     template <auto prototype>
     struct Method : MethodImpl<Method<prototype>, decltype(prototype)> {};