<p>Also crashes with the latest Pharo Stable VM on Mac OS Mojave</p>
<pre><code>Users/andrei/Documents/Pharo/vms/80-x64/Pharo.app/Contents/MacOS/Pharo
CoInterpreter VMMaker.oscog-eem.2509 uuid: 91e81f64-95de-4914-a960-8f842be3a194 Feb  7 2019
StackToRegisterMappingCogit VMMaker.oscog-eem.2509 uuid: 91e81f64-95de-4914-a960-8f842be3a194 Feb  7 2019
VM: 201902062351 https://github.com/OpenSmalltalk/opensmalltalk-vm.git Date: Wed Feb 6 15:51:18 2019 CommitHash: a838346 Plugins: 201902062351 https://github.com/OpenSmalltalk/opensmalltalk-vm.git

Mac OS X built on Feb  7 2019 00:01:47 UTC Compiler: 4.2.1 Compatible Apple LLVM 7.3.0 (clang-703.0.31)
VMMaker versionString VM: 201902062351 https://github.com/OpenSmalltalk/opensmalltalk-vm.git Date: Wed Feb 6 15:51:18 2019 CommitHash: a838346 Plugins: 201902062351 https://github.com/OpenSmalltalk/opensmalltalk-vm.git
CoInterpreter VMMaker.oscog-eem.2509 uuid: 91e81f64-95de-4914-a960-8f842be3a194 Feb  7 2019
StackToRegisterMappingCogit VMMaker.oscog-eem.2509 uuid: 91e81f64-95de-4914-a960-8f842be3a194 Feb  7 2019
</code></pre>
<pre><code>0   libsystem_kernel.dylib               0x00007fff6e5bb2c6 __pthread_kill + 10
1   libsystem_pthread.dylib             0x00007fff6e676bf1 pthread_kill + 284
2   libsystem_c.dylib                   0x00007fff6e5256a6 abort + 127
3   org.pharo.Pharo                     0x000000010913f662 sigsegv + 209
4   libsystem_platform.dylib            0x00007fff6e66bb5d _sigtramp + 29
5   ???                                 000000000000000000 0 + 0
6   org.pharo.Pharo                     0x00000001090db9d2 markObjects + 463
7   org.pharo.Pharo                     0x00000001090db1aa fullGC + 72
8   org.pharo.Pharo                     0x00000001090facdf snapshot + 206
9   org.pharo.Pharo                     0x00000001090ef837 primitiveSnapshot + 11
10  org.pharo.Pharo                     0x00000001090bb38d interpret + 17947
11  org.pharo.Pharo                     0x00000001090c4c1f enterSmalltalkExecutiveImplementation + 149
12  org.pharo.Pharo                     0x00000001090b6fe6 interpret + 628
13  org.pharo.Pharo                     0x0000000109140a82 -[sqSqueakMainApplication runSqueak] + 393
14  com.apple.Foundation                0x00007fff4489fc4a __NSFirePerformWithOrder + 362
15  com.apple.CoreFoundation            0x00007fff42591928 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
16  com.apple.CoreFoundation            0x00007fff4259185d __CFRunLoopDoObservers + 451
17  com.apple.CoreFoundation            0x00007fff42533f80 __CFRunLoopRun + 1136
18  com.apple.CoreFoundation            0x00007fff425338be CFRunLoopRunSpecific + 455
19  com.apple.HIToolbox                 0x00007fff4181f96b RunCurrentEventLoopInMode + 292
20  com.apple.HIToolbox                 0x00007fff4181f5ad ReceiveNextEventCommon + 355
21  com.apple.HIToolbox                 0x00007fff4181f436 _BlockUntilNextEventMatchingListInModeWithFilter + 64
22  com.apple.AppKit                    0x00007fff3fbb9987 _DPSNextEvent + 965
23  com.apple.AppKit                    0x00007fff3fbb871f -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1361
24  com.apple.AppKit                    0x00007fff3fbb283c -[NSApplication run] + 699
25  com.apple.AppKit                    0x00007fff3fba1d7c NSApplicationMain + 777
26  libdyld.dylib                       0x00007fff6e4803d5 start + 1
</code></pre>

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