Handle also []any in unoAnyToPropertyTree()

We add it as a subtree where each element in the sequence has as its
name its number.

Change-Id: I9422777d887d899f76ad6d259631d15c2db53f03
Reviewed-on: https://gerrit.libreoffice.org/51967Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tor Lillqvist <tml@collabora.com>
(cherry picked from commit 1bf2ed44)
Reviewed-on: https://gerrit.libreoffice.org/52091Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Miklos Vajna <vmiklos@collabora.co.uk>

desktop/source/lib/init.cxx

@@ -291,6 +291,20 @@ static boost::property_tree::ptree unoAnyToPropertyTree(const uno::Any& anyItem)
         aTree.put("value", OString::number(anyItem.get<sal_uInt32>()).getStr());
     else if (aType == "long")
         aTree.put("value", OString::number(anyItem.get<sal_Int32>()).getStr());
+    else if (aType == "[]any")
+    {
+        uno::Sequence<uno::Any> aSeq;
+        if (anyItem >>= aSeq)
+        {
+            boost::property_tree::ptree aSubTree;
+
+            for (auto i = 0; i < aSeq.getLength(); ++i)
+            {
+                aSubTree.add_child(OString::number(i).getStr(), unoAnyToPropertyTree(aSeq[i]));
+            }
+            aTree.add_child("value", aSubTree);
+        }
+    }
 
     // TODO: Add more as required