Avoid ODR-violating name clash

Change-Id: I69c3b11b01d520a485b07c8e5397a7f971210af2

svx/source/form/tabwin.cxx

@@ -71,6 +71,7 @@ using namespace ::com::sun::star;
 using namespace ::svxform;
 using namespace ::svx;
 
+namespace {
 
 struct ColumnInfo
 {
@@ -83,6 +84,8 @@ struct ColumnInfo
     }
 };
 
+}
+
 static void lcl_addToList( SvTreeListBox& _rListBox, const uno::Reference< container::XNameAccess>& i_xColumns )
 {
     uno::Sequence< OUString > aEntries = i_xColumns->getElementNames();

xmloff/source/table/XMLTableImport.cxx

@@ -51,6 +51,8 @@ using namespace ::com::sun::star::style;
 using namespace ::com::sun::star::lang;
 using namespace ::com::sun::star::container;
 
+namespace {
+
 struct ColumnInfo
 {
     OUString msStyleName;
@@ -58,6 +60,8 @@ struct ColumnInfo
     OUString msDefaultCellStyleName;
 };
 
+}
+
 class XMLProxyContext : public SvXMLImportContext
 {
 public: