//// [FunctionDeclaration3_es6.ts]
//!   x `yield` cannot be used as an identifier in strict mode
//!    ,-[1:1]
//!  1 | function f(yield = yield) {
//!    :            ^^^^^
//!  2 | }
//!    `----
//!   x Expression expected
//!    ,-[1:1]
//!  1 | function f(yield = yield) {
//!    :                    ^^^^^
//!  2 | }
//!    `----
