Patrick Rein uploaded a new version of Collections to project The Trunk: http://source.squeak.org/trunk/Collections-pre.822.mcz
==================== Summary ====================
Name: Collections-pre.822 Author: pre Time: 20 March 2019, 8:05:20.383677 pm UUID: 483c4461-cee4-4a4f-82d3-fbc03e7201cc Ancestors: Collections-dtl.821
Adds #isMutator to Symbol which is analogous to asMutator.
=============== Diff against Collections-dtl.821 ===============
Item was added: + ----- Method: Symbol>>isMutator (in category 'testing') ----- + isMutator + + ^ self isKeyword and: [self numArgs = 1]!
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