valueflow.cpp: avoid unnecessary copy in valueFlowSymbolicOperators()

Author: firewave

lib/valueflow.cpp

@@ -3652,7 +3652,7 @@ static void valueFlowSymbolicOperators(const SymbolDatabase& symboldatabase, con
                     continue;
 
                 ValueFlow::Value v = makeSymbolic(arg);
-                v.errorPath = c.errorPath;
+                v.errorPath = std::move(c.errorPath);
                 v.errorPath.emplace_back(tok, "Passed to " + tok->str());
                 if (c.intvalue == 0)
                     v.setImpossible();