//// [usingDeclarationsWithESClassDecorators.2.ts]
//! 
//!   x Expression expected
//!    ,-[4:1]
//!  4 | 
//!  5 | using before = null;
//!  6 | 
//!  7 | @dec
//!    : ^
//!  8 | export class C {
//!  9 | }
//!    `----
