Revert "Remove typings and replace missing methods with vscodes (#8217)" (#8240)

This reverts commit 22a427f934.

src/tsconfig.base.json

@@ -18,6 +18,9 @@
 			],
 			"sql/*": [
 				"./sql/*"
+			],
+			"sqltest/*": [
+				"./sqltest/*"
 			]
 		}
 	}