filter out AST in more plugins

I seem to have missed quite a few in

    commit 9f4d23c151
    filter out some of the AST in the plugins

This nets me another 14% improvement

Change-Id: I39b980b49ced560f768045dbedd3ddfef29306c1
Reviewed-on: https://gerrit.libreoffice.org/59501
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

compilerplugins/clang/fragiledestructor.cxx

@@ -22,11 +22,11 @@
 namespace {
 
 class FragileDestructor:
-    public RecursiveASTVisitor<FragileDestructor>, public loplugin::Plugin
+    public loplugin::FilteringPlugin<FragileDestructor>
 {
 public:
     explicit FragileDestructor(loplugin::InstantiationData const & data):
-        Plugin(data) {}
+        FilteringPlugin(data) {}
 
     virtual void run() override { TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()); }