Eliot Miranda uploaded a new version of Kernel to project The Trunk:
http://source.squeak.org/trunk/Kernel-eem.1182.mcz==================== Summary ====================
Name: Kernel-eem.1182
Author: eem
Time: 26 July 2018, 8:33:34.998936 pm
UUID: 4d10c2e2-c1b7-4ba0-b208-b018f0f099e9
Ancestors: Kernel-eem.1181
Add an accessor for Mutex being owned, for use in tests.
=============== Diff against Kernel-eem.1181 ===============
Item was added:
+ ----- Method: Mutex>>isOwned (in category 'testing') -----
+ isOwned
+ "Answer if the receiver is owned. DO NOT USE THIS IN NORMAL CODE.
+ This exists for the MutexTests so they don't have to use e.g. instVarNamed:.
+ N.B. don't use notNil because that is a real send and preemptable."
+ ^nil ~~ owner!