ASR: Make a dummy assign for exprs

Author: ubaidsk

src/lpython/semantics/python_ast_to_asr.cpp

@@ -4729,6 +4729,9 @@ class BodyVisitor : public CommonVisitor<BodyVisitor> {
             // Visit the statement
             this->visit_stmt(*m_body[i]);
             if (tmp != nullptr) {
+                if (ASR::is_a<ASR::expr_t>(*tmp)) {
+                    tmp = make_dummy_assignment(ASRUtils::EXPR(tmp), tmp->loc);
+                }
                 ASR::stmt_t* tmp_stmt = ASRUtils::STMT(tmp);
                 body.push_back(al, tmp_stmt);
             } else if (!tmp_vec.empty()) {