=== tests/cases/compiler/recursiveComplicatedClasses.ts ===
class Signature {
>Signature : Signature

    public parameters: ParameterSymbol[] = null;
>parameters : ParameterSymbol[]
>ParameterSymbol : ParameterSymbol
>null : null
}

function aEnclosesB(a: Symbol) {
>aEnclosesB : (a: Symbol) => boolean
>a : Symbol
>Symbol : Symbol

    return true;
>true : boolean
}

class Symbol {
>Symbol : Symbol

    public bound: boolean;
>bound : boolean

    public visible() {
>visible : () => boolean

        var b: TypeSymbol;
>b : TypeSymbol
>TypeSymbol : TypeSymbol

        return aEnclosesB(b);
>aEnclosesB(b) : boolean
>aEnclosesB : (a: Symbol) => boolean
>b : TypeSymbol
    }

}
class InferenceSymbol extends Symbol {
>InferenceSymbol : InferenceSymbol
>Symbol : Symbol
}

class ParameterSymbol extends InferenceSymbol {
>ParameterSymbol : ParameterSymbol
>InferenceSymbol : InferenceSymbol
}

class TypeSymbol extends InferenceSymbol {
>TypeSymbol : TypeSymbol
>InferenceSymbol : InferenceSymbol
}