//// [typeAssertionToGenericFunctionType.ts]
var x = {
    a: < <T>(x: T) => T > ((x: any) => 1),
    b: <T>(x: T) => { x }
}
x.a<string>(1); // bug was that this caused 'Could not find symbol T' on return type T in the type assertion on x.a's definition
x.b<string>(); // error

//// [typeAssertionToGenericFunctionType.js]
var x = {
    a: (function (x) { return 1; }),
    b: function (x) { x; }
};
x.a(1); // bug was that this caused 'Could not find symbol T' on return type T in the type assertion on x.a's definition
x.b(); // error