Calling dumpHeap() on non-existent directory causes crash
Calling System.dumpHeap('/non/existent/directory/foo.heap');
for example, causes a segfault in Gjs.
For reference:
gjs[29195]: segfault at 0 ip 00007fb89fbc13de sp 00007ffc8f261900 error 4 in libc-2.26.so[7fb89fb4a000+1d6000]