Patrick Rein uploaded a new version of CollectionsTests to project The Trunk:
http://source.squeak.org/trunk/CollectionsTests-pre.321.mcz

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

Name: CollectionsTests-pre.321
Author: pre
Time: 2 October 2019, 3:10:28.551738 pm
UUID: a1f686f0-7727-eb40-929a-c529ee66af0c
Ancestors: CollectionsTests-jr.320

Removes asMutator and isMutator tests

=============== Diff against CollectionsTests-jr.320 ===============

Item was removed:
- ----- Method: SymbolTest>>testAsMutator (in category 'tests') -----
- testAsMutator
- 	self 
- 		assert: #x asMutator = #x: ;
- 		assert: #x: asMutator = #x: ;
- 		assert: #x asMutator isSymbol!

Item was removed:
- ----- Method: SymbolTest>>testIsMutator (in category 'tests - testing') -----
- testIsMutator
- 	self 
- 		assert: #x: isMutator ;
- 		deny: #x isMutator ;
- 		deny: #+ isMutator ;
- 		deny: #a:b: isMutator!