=== tests/cases/compiler/functionType.ts ===
function salt() {}
>salt : Symbol(salt, Decl(functionType.ts, 0, 0))

salt.apply("hello", []);
>salt.apply : Symbol(Function.apply, Decl(lib.d.ts, 228, 20))
>salt : Symbol(salt, Decl(functionType.ts, 0, 0))
>apply : Symbol(Function.apply, Decl(lib.d.ts, 228, 20))

(new Function("return 5"))();
>Function : Symbol(Function, Decl(lib.d.ts, 223, 38), Decl(lib.d.ts, 269, 11))