//// [/foo.ts]
//!   x Unexpected token `@`. Expected identifier, string literal, numeric literal or [ for the computed key
//!    ,-[4:1]
//!  1 | 
//!  2 | declare var metadata: any;
//!  3 | class C {
//!  4 |     @metadata m() {}
//!    :     ^
//!  5 | }
//!    `----
