Function parseInitializer

test/fixtures/snapshot/typescript.js:34384–34386

()

            return expr;
        }
        function parseInitializer() {
            return parseOptional(63 /* SyntaxKind.EqualsToken */) ? parseAssignmentExpressionOrHigher() : undefined;
        }
        function parseAssignmentExpressionOrHigher() {
            //  AssignmentExpression[in,yield]:
            //      1) ConditionalExpression[?in,?yield]