JS: Add test demonstrating new flow

Author: asgerf

javascript/ql/test/library-tests/frameworks/SQL/SqlString.expected

@@ -41,4 +41,5 @@
 | spanner.js:19:23:19:32 | "SQL code" |
 | spannerImport.js:4:8:4:17 | "SQL code" |
 | sqlite.js:7:8:7:45 | "UPDATE ... id = ?" |
+| sqliteArray.js:6:12:6:49 | "UPDATE ... id = ?" |
 | sqliteImport.js:2:8:2:44 | "UPDATE ... id = ?" |

javascript/ql/test/library-tests/frameworks/SQL/sqliteArray.js

@@ -0,0 +1,7 @@
+var sqlite = require('sqlite3');
+
+let databaseNames = [":memory:", ":foo:"];
+let databases = databaseNames.map(name => new sqlite.Database(name));
+for (let db of databases) {
+    db.run("UPDATE tbl SET name = ? WHERE id = ?", "bar", 2);
+}