=== tests/cases/compiler/contextualSignatureInstantiation2.ts ===
// dot f g x = f(g(x))
var dot: <T, S>(f: (_: T) => S) => <U>(g: (_: U) => T) => (_: U) => S;
>dot : Symbol(dot, Decl(contextualSignatureInstantiation2.ts, 1, 3))
>T : Symbol(T, Decl(contextualSignatureInstantiation2.ts, 1, 10))
>S : Symbol(S, Decl(contextualSignatureInstantiation2.ts, 1, 12))
>f : Symbol(f, Decl(contextualSignatureInstantiation2.ts, 1, 16))
>_ : Symbol(_, Decl(contextualSignatureInstantiation2.ts, 1, 20))
>T : Symbol(T, Decl(contextualSignatureInstantiation2.ts, 1, 10))
>S : Symbol(S, Decl(contextualSignatureInstantiation2.ts, 1, 12))
>U : Symbol(U, Decl(contextualSignatureInstantiation2.ts, 1, 36))
>g : Symbol(g, Decl(contextualSignatureInstantiation2.ts, 1, 39))
>_ : Symbol(_, Decl(contextualSignatureInstantiation2.ts, 1, 43))
>U : Symbol(U, Decl(contextualSignatureInstantiation2.ts, 1, 36))
>T : Symbol(T, Decl(contextualSignatureInstantiation2.ts, 1, 10))
>_ : Symbol(_, Decl(contextualSignatureInstantiation2.ts, 1, 59))
>U : Symbol(U, Decl(contextualSignatureInstantiation2.ts, 1, 36))
>S : Symbol(S, Decl(contextualSignatureInstantiation2.ts, 1, 12))

dot = <T, S>(f: (_: T) => S) => <U>(g: (_: U) => T): (r:U) => S => (x) => f(g(x));
>dot : Symbol(dot, Decl(contextualSignatureInstantiation2.ts, 1, 3))
>T : Symbol(T, Decl(contextualSignatureInstantiation2.ts, 2, 7))
>S : Symbol(S, Decl(contextualSignatureInstantiation2.ts, 2, 9))
>f : Symbol(f, Decl(contextualSignatureInstantiation2.ts, 2, 13))
>_ : Symbol(_, Decl(contextualSignatureInstantiation2.ts, 2, 17))
>T : Symbol(T, Decl(contextualSignatureInstantiation2.ts, 2, 7))
>S : Symbol(S, Decl(contextualSignatureInstantiation2.ts, 2, 9))
>U : Symbol(U, Decl(contextualSignatureInstantiation2.ts, 2, 33))
>g : Symbol(g, Decl(contextualSignatureInstantiation2.ts, 2, 36))
>_ : Symbol(_, Decl(contextualSignatureInstantiation2.ts, 2, 40))
>U : Symbol(U, Decl(contextualSignatureInstantiation2.ts, 2, 33))
>T : Symbol(T, Decl(contextualSignatureInstantiation2.ts, 2, 7))
>r : Symbol(r, Decl(contextualSignatureInstantiation2.ts, 2, 54))
>U : Symbol(U, Decl(contextualSignatureInstantiation2.ts, 2, 33))
>S : Symbol(S, Decl(contextualSignatureInstantiation2.ts, 2, 9))
>x : Symbol(x, Decl(contextualSignatureInstantiation2.ts, 2, 68))
>f : Symbol(f, Decl(contextualSignatureInstantiation2.ts, 2, 13))
>g : Symbol(g, Decl(contextualSignatureInstantiation2.ts, 2, 36))
>x : Symbol(x, Decl(contextualSignatureInstantiation2.ts, 2, 68))

var id: <T>(x:T) => T;
>id : Symbol(id, Decl(contextualSignatureInstantiation2.ts, 3, 3))
>T : Symbol(T, Decl(contextualSignatureInstantiation2.ts, 3, 9))
>x : Symbol(x, Decl(contextualSignatureInstantiation2.ts, 3, 12))
>T : Symbol(T, Decl(contextualSignatureInstantiation2.ts, 3, 9))
>T : Symbol(T, Decl(contextualSignatureInstantiation2.ts, 3, 9))

var r23 = dot(id)(id);
>r23 : Symbol(r23, Decl(contextualSignatureInstantiation2.ts, 4, 3))
>dot : Symbol(dot, Decl(contextualSignatureInstantiation2.ts, 1, 3))
>id : Symbol(id, Decl(contextualSignatureInstantiation2.ts, 3, 3))
>id : Symbol(id, Decl(contextualSignatureInstantiation2.ts, 3, 3))

