updateArrowFunction
abstract fun updateArrowFunction( node: ArrowFunction, modifiers: <Error class: unknown class><Modifier>?, typeParameters: <Error class: unknown class><TypeParameterDeclaration>?, parameters: <Error class: unknown class><ParameterDeclaration>, type: TypeNode?, equalsGreaterThanToken: EqualsGreaterThanToken, body: ConciseBody): ArrowFunction(source)