=== tests/cases/compiler/genericFunctions1.ts ===
function foo<T > (x: T) { return x; }
>foo : <T>(x: T) => T
>T : T
>x : T
>T : T
>x : T

var x = foo(5); // 'x' should be number
>x : number
>foo(5) : number
>foo : <T>(x: T) => T