=== tests/cases/conformance/es6/classExpressions/classExpressionES63.ts ===
let C = class extends class extends class { a = 1 } { b = 2 } { c = 3 };
>C : typeof C
>class extends class extends class { a = 1 } { b = 2 } { c = 3 } : typeof C
>class extends class { a = 1 } { b = 2 } : (Anonymous class)
>class { a = 1 } : (Anonymous class)
>a : number
>1 : 1
>b : number
>2 : 2
>c : number
>3 : 3

let c = new C();
>c : C
>new C() : C
>C : typeof C

c.a;
>c.a : number
>c : C
>a : number

c.b;
>c.b : number
>c : C
>b : number

c.c;
>c.c : number
>c : C
>c : number

