RTE: Fix comparison of FormalRTESymbol (error from 5834e381)

alib2data/src/rte/formal/FormalRTESymbol.cpp

@@ -72,7 +72,7 @@ void FormalRTESymbol::appendElement ( FormalRTESymbol element ) {
 int FormalRTESymbol::compare ( const FormalRTESymbol & other ) const {
 	auto first = std::tie ( symbol, getElements ( ) );
-	auto second = std::tie ( symbol, other.getElements ( ) );
+	auto second = std::tie ( other.symbol, other.getElements ( ) );
 	std::compare < decltype ( first ) > comp;