[Pkg] FFI: FFI-Kernel-mt.180.mcz

Marcel Taeumel uploaded a new version of FFI-Kernel to project FFI: http://source.squeak.org/FFI/FFI-Kernel-mt.180.mcz

==================== Summary ====================

Name: FFI-Kernel-mt.180 Author: mt Time: 28 May 2021, 4:51:31.579735 pm UUID: 62c92222-8259-4c75-8071-df970bef7363 Ancestors: FFI-Kernel-mt.179

Small bugfix.

=============== Diff against FFI-Kernel-mt.179 ===============

Item was changed: ----- Method: ExternalStructure>>writer (in category 'accessing') ----- writer

+ ^ (handle isExternalAddress or: [self isNull]) - ^ handle isExternalAddress ifTrue: [self] ifFalse: [self class fromHandle: (ByteArrayReadWriter on: handle)]!