loplugin:unusedmethods oox

Change-Id: I5381e0da0efc1f951e248cfcfb35fc680ace94e4
Reviewed-on: https://gerrit.libreoffice.org/17225
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

compilerplugins/clang/unusedmethods.py

@@ -60,6 +60,8 @@ exclusionSet = set([
     "const class rtl::OUString writerperfect::DocumentHandlerFor::name()",
     # only used by OSX build
     "void StyleSettings::SetHideDisabledMenuItems(_Bool)",
+    # debugging method
+    "void oox::drawingml::TextParagraphProperties::dump() const"
     ])