tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck40.ts(2,21): error TS2507: Type 'any' is not a constructor function type.
tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck40.ts(2,22): error TS1163: A 'yield' expression is only allowed in a generator body.


==== tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck40.ts (2 errors) ====
    function* g() {
        class C extends (yield 0) { }
                        ~~~~~~~~~
!!! error TS2507: Type 'any' is not a constructor function type.
                         ~~~~~
!!! error TS1163: A 'yield' expression is only allowed in a generator body.
    }