Improved the support for default args by ignoring a temporary expression.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/CppParser/Parser.cpp

@@ -2677,6 +2677,8 @@ AST::Expression* Parser::WalkExpression(clang::Expr* Expr)
         }
         return ConstructorExpression;
     }
+    case Stmt::CXXBindTemporaryExprClass:
+        return WalkExpression(cast<CXXBindTemporaryExpr>(Expr)->getSubExpr());
     case Stmt::MaterializeTemporaryExprClass:
         return WalkExpression(cast<MaterializeTemporaryExpr>(Expr)->GetTemporaryExpr());
     default: