loplugin:unusedmethods

Change-Id: Ifeb818227a960cab8fd2e8e7352468efbfe1232c
Reviewed-on: https://gerrit.libreoffice.org/25668
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

compilerplugins/clang/unusedmethods.py

@@ -270,6 +270,8 @@ for d in definitionSet:
     # ignore the SfxPoolItem CreateDefault methods for now
     if d[1].endswith("::CreateDefault()"):
         continue
+    if "::operator" in d[1]:
+        continue
 
     unusedSet.add(d) # used by the "unused return types" analysis
     tmp1set.add((method, definitionToSourceLocationMap[d]))