clang-cl loplugin: toolkit

Change-Id: I2f3c1416e1550c511c21ebf609f0f4465e8568cb
Reviewed-on: https://gerrit.libreoffice.org/29847Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Tested-by: Stephan Bergmann <sbergman@redhat.com>

toolkit/source/awt/vclxwindow1.cxx

@@ -78,7 +78,7 @@ void VCLXWindow::SetSystemParent_Impl( const css::uno::Any& rHandle )
     SystemParentData aSysParentData;
     aSysParentData.nSize = sizeof ( SystemParentData );
 #if defined(_WIN32)
-    aSysParentData.hWnd = (HWND) nHandle;
+    aSysParentData.hWnd = reinterpret_cast<HWND>(nHandle);
 #elif defined( MACOSX )
     aSysParentData.pView = reinterpret_cast<NSView*>(nHandle);
 #elif defined( ANDROID )