Function getDefaultFromTypeParameter

test/fixtures/snapshot/typescript.js:59094–59097

* Gets the default type for a type parameter. * * If the type parameter is the result of an instantiation, this gets the instantiated * default type of its target. If the type parameter has no default type or the default is * circular, `undefined` is returned.

(typeParameter)

         * circular, `undefined` is returned.
         */
        function getDefaultFromTypeParameter(typeParameter) {
            var defaultType = getResolvedTypeParameterDefault(typeParameter);
            return defaultType !== noConstraintType && defaultType !== circularConstraintType ? defaultType : undefined;
        }
        function hasNonCircularTypeParameterDefault(typeParameter) {
            return getResolvedTypeParameterDefault(typeParameter) !== circularConstraintType;
        }