A new version of Kernel was added to project The Inbox: http://source.squeak.org/inbox/Kernel-tonyg.1150.mcz
==================== Summary ====================
Name: Kernel-tonyg.1150 Author: tonyg Time: 1 February 2018, 9:59:50.393266 am UUID: 6afb5455-c040-4572-a62a-b292e20856e6 Ancestors: Kernel-tonyg.1149
(Re)introduce isPromise, and use it instead of isKindOf:.
=============== Diff against Kernel-tonyg.1149 ===============
Item was added: + ----- Method: Object>>isPromise (in category 'testing') ----- + isPromise + ^false!
Item was changed: ----- Method: Promise>>isPromise (in category 'testing') ----- isPromise + ^ true! - ^ true.!
Item was changed: ----- Method: Promise>>resolveWith: (in category 'resolving') ----- resolveWith: arg "Resolve this promise. If arg is itself a Promise, make this promise depend upon it, as detailed in the Promises/A+ spec: https://promisesaplus.com/#the-promise-resolution-procedure"
+ arg isPromise - (arg isKindOf: Promise) ifTrue: [ arg whenResolved: [:v | self resolveWith: v]. arg whenRejected: [:e | self rejectWith: e]] ifFalse: [ mutex critical: [ (state == #pending) ifTrue: [ value := arg. state := #fulfilled. resolvers do: [:r | self evaluateResolver: r]]]]!