valueflow.cpp: fixed constParameter selfcheck warnings

Author: firewave

lib/valueflow.cpp

@@ -2082,7 +2082,7 @@ static Analyzer::Result valueFlowForward(Token* startToken,
 static Analyzer::Result valueFlowForwardRecursive(Token* top,
                                                   const Token* exprTok,
                                                   std::list<ValueFlow::Value> values,
-                                                  TokenList& tokenlist,
+                                                  const TokenList& tokenlist,
                                                   const Settings* settings,
                                                   SourceLocation loc = SourceLocation::current())
 {
@@ -7567,7 +7567,7 @@ static void valueFlowSubFunction(TokenList& tokenlist, SymbolDatabase* symboldat
     }
 }
 
-static void valueFlowFunctionDefaultParameter(TokenList& tokenlist, SymbolDatabase* symboldatabase, const Settings* settings)
+static void valueFlowFunctionDefaultParameter(const TokenList& tokenlist, SymbolDatabase* symboldatabase, const Settings* settings)
 {
     if (!tokenlist.isCPP())
         return;