Function parseTypeOrTypePredicate

test/fixtures/snapshot/typescript.js:34246–34256

()

            return false;
        }
        function parseTypeOrTypePredicate() {
            var pos = getNodePos();
            var typePredicateVariable = isIdentifier() && tryParse(parseTypePredicatePrefix);
            var type = parseType();
            if (typePredicateVariable) {
                return finishNode(factory.createTypePredicateNode(/*assertsModifier*/ undefined, typePredicateVariable, type), pos);
            }
            else {
                return type;
            }
        }
        function parseTypePredicatePrefix() {
            var id = parseIdentifier();
            if (token() === 139 /* SyntaxKind.IsKeyword */ && !scanner.hasPrecedingLineBreak()) {