//// [genericFunctions0.ts]
function foo<T > (x: T) { return x; }

var x = foo<number>(5); // 'x' should be number

//// [genericFunctions0.js]
function foo(x) {
    return x;
}
var x = foo(5); // 'x' should be number 


//// [genericFunctions0.d.ts]
declare function foo<T>(x: T): T;
declare var x: number;