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=== tests/cases/compiler/generics1.ts ===
interface A { a: string; }
>A : Symbol(A, Decl(generics1.ts, 0, 0))
>a : Symbol(A.a, Decl(generics1.ts, 0, 13))
interface B extends A { b: string; }
>B : Symbol(B, Decl(generics1.ts, 0, 26))
>A : Symbol(A, Decl(generics1.ts, 0, 0))
>b : Symbol(B.b, Decl(generics1.ts, 1, 23))
interface C extends B { c: string; }
>C : Symbol(C, Decl(generics1.ts, 1, 36))
>B : Symbol(B, Decl(generics1.ts, 0, 26))
>c : Symbol(C.c, Decl(generics1.ts, 2, 23))
interface G<T, U extends B> {
>G : Symbol(G, Decl(generics1.ts, 2, 36))
>T : Symbol(T, Decl(generics1.ts, 3, 12))
>U : Symbol(U, Decl(generics1.ts, 3, 14))
>B : Symbol(B, Decl(generics1.ts, 0, 26))
x: T;
>x : Symbol(G.x, Decl(generics1.ts, 3, 29))
>T : Symbol(T, Decl(generics1.ts, 3, 12))
y: U;
>y : Symbol(G.y, Decl(generics1.ts, 4, 9))
>U : Symbol(U, Decl(generics1.ts, 3, 14))
}
var v1: G<A, C>; // Ok
>v1 : Symbol(v1, Decl(generics1.ts, 7, 3))
>G : Symbol(G, Decl(generics1.ts, 2, 36))
>A : Symbol(A, Decl(generics1.ts, 0, 0))
>C : Symbol(C, Decl(generics1.ts, 1, 36))
var v2: G<{ a: string }, C>; // Ok, equivalent to G<A, C>
>v2 : Symbol(v2, Decl(generics1.ts, 8, 3))
>G : Symbol(G, Decl(generics1.ts, 2, 36))
>a : Symbol(a, Decl(generics1.ts, 8, 11))
>C : Symbol(C, Decl(generics1.ts, 1, 36))
var v3: G<A, A>; // Error, A not valid argument for U
>v3 : Symbol(v3, Decl(generics1.ts, 9, 3))
>G : Symbol(G, Decl(generics1.ts, 2, 36))
>A : Symbol(A, Decl(generics1.ts, 0, 0))
>A : Symbol(A, Decl(generics1.ts, 0, 0))
var v4: G<G<A, B>, C>; // Ok
>v4 : Symbol(v4, Decl(generics1.ts, 10, 3))
>G : Symbol(G, Decl(generics1.ts, 2, 36))
>G : Symbol(G, Decl(generics1.ts, 2, 36))
>A : Symbol(A, Decl(generics1.ts, 0, 0))
>B : Symbol(B, Decl(generics1.ts, 0, 26))
>C : Symbol(C, Decl(generics1.ts, 1, 36))
var v5: G<any, any>; // Error, any does not satisfy constraint B
>v5 : Symbol(v5, Decl(generics1.ts, 11, 3))
>G : Symbol(G, Decl(generics1.ts, 2, 36))
var v6: G<any>; // Error, wrong number of arguments
>v6 : Symbol(v6, Decl(generics1.ts, 12, 3))
>G : Symbol(G, Decl(generics1.ts, 2, 36))
var v7: G; // Error, no type arguments
>v7 : Symbol(v7, Decl(generics1.ts, 13, 3))
>G : Symbol(G, Decl(generics1.ts, 2, 36))
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