cgen: fix static var name used in sqlite orm generation, close #9725 (#9745)

Author: LouisSchmieder

vlib/v/gen/c/sql.v

@@ -150,9 +150,10 @@ fn (mut g Gen) sqlite3_stmt(node ast.SqlStmt, typ SqlType) {
 				g.sql_stmt_name = tmp_sql_stmt_name
 				g.sql_table_name = tmp_sql_table_name
 				// get last inserted id
-				g.writeln('Array_sqlite__Row rows = sqlite__DB_exec($db_name, _SLIT("SELECT last_insert_rowid()")).arg0;')
+				res := g.new_tmp_var()
+				g.writeln('Array_sqlite__Row $res = sqlite__DB_exec($db_name, _SLIT("SELECT last_insert_rowid()")).arg0;')
 				id_name := g.new_tmp_var()
-				g.writeln('int $id_name = string_int((*(string*)array_get((*(sqlite__Row*)array_get(rows, 0)).vals, 0)));')
+				g.writeln('int $id_name = string_int((*(string*)array_get((*(sqlite__Row*)array_get($res, 0)).vals, 0)));')
 				g.writeln('sqlite3_bind_int($g.sql_stmt_name, ${i + 0} , $id_name); // id')
 			} else {
 				g.writeln('sqlite3_bind_int($g.sql_stmt_name, ${i + 0} , $x); // stmt')