=== tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck46.ts ===
declare function foo<T, U>(x: T, fun: () => Iterable<(x: T) => U>, fun2: (y: U) => T): T;
>foo : Symbol(foo, Decl(generatorTypeCheck46.ts, 0, 0))
>T : Symbol(T, Decl(generatorTypeCheck46.ts, 0, 21))
>U : Symbol(U, Decl(generatorTypeCheck46.ts, 0, 23))
>x : Symbol(x, Decl(generatorTypeCheck46.ts, 0, 27))
>T : Symbol(T, Decl(generatorTypeCheck46.ts, 0, 21))
>fun : Symbol(fun, Decl(generatorTypeCheck46.ts, 0, 32))
>Iterable : Symbol(Iterable, Decl(lib.d.ts, 1681, 1))
>x : Symbol(x, Decl(generatorTypeCheck46.ts, 0, 54))
>T : Symbol(T, Decl(generatorTypeCheck46.ts, 0, 21))
>U : Symbol(U, Decl(generatorTypeCheck46.ts, 0, 23))
>fun2 : Symbol(fun2, Decl(generatorTypeCheck46.ts, 0, 66))
>y : Symbol(y, Decl(generatorTypeCheck46.ts, 0, 74))
>U : Symbol(U, Decl(generatorTypeCheck46.ts, 0, 23))
>T : Symbol(T, Decl(generatorTypeCheck46.ts, 0, 21))
>T : Symbol(T, Decl(generatorTypeCheck46.ts, 0, 21))

foo("", function* () {
>foo : Symbol(foo, Decl(generatorTypeCheck46.ts, 0, 0))

    yield* {
        *[Symbol.iterator]() {
>Symbol.iterator : Symbol(SymbolConstructor.iterator, Decl(lib.d.ts, 1249, 31))
>Symbol : Symbol(Symbol, Decl(lib.d.ts, 1199, 52), Decl(lib.d.ts, 1305, 11))
>iterator : Symbol(SymbolConstructor.iterator, Decl(lib.d.ts, 1249, 31))

            yield x => x.length
>x : Symbol(x, Decl(generatorTypeCheck46.ts, 5, 17))
>x.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>x : Symbol(x, Decl(generatorTypeCheck46.ts, 5, 17))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
        }
    }
}, p => undefined); // T is fixed, should be string
>p : Symbol(p, Decl(generatorTypeCheck46.ts, 8, 2))
>undefined : Symbol(undefined)