new crash even with https://github.com/pnkfelix/iontrail/tree/make-firefox-stable

gistfile1.txt

Assertion failure: hasParallelIonScript(), at ../../../js/src/jsscript.h:607
Assertion failure: hasParallelIonScript(), at ../../../js/src/jsscript.h:607
Assertion failure: hasParallelIonScript(), at ../../../js/src/jsscript.h:607
Assertion failure: hasParallelIonScript(), at ../../../js/src/jsscript.h:607
Assertion failure: hasParallelIonScript(), at ../../../js/src/jsscript.h:607
Assertion failure: hasParallelIonScript(), at ../../../js/src/jsscript.h:607
Assertion failure: hasParallelIonScript(), at ../../../js/src/jsscript.h:607
Assertion failure: hasParallelIonScript(), at ../../../js/src/jsscript.h:607

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000000
[Switching to process 83008 thread 0xbb0f]
JSScript::parallelIonScript (this=0x14acad280) at jsscript.h:607
(gdb) bt
#0  JSScript::parallelIonScript (this=0x14acad280) at jsscript.h:607
#1  0x0000000104cf9a3d in ParallelIonInvoke<3u>::ParallelIonInvoke (this=0x14af06c50, cx=0x11a5ee930, fun={<js::HandleBase<JSObject *>> = {<No data fields>}, ptr = 0x14af06ca8}, argc=3) at /Users/fklock/Dev/Mozilla/iontrail/js/src/vm/ParallelDo.cpp:394
#2  0x0000000104cf984b in ParallelIonInvoke<3u>::ParallelIonInvoke (this=0x14af06c50, cx=0x11a5ee930, fun={<js::HandleBase<JSObject *>> = {<No data fields>}, ptr = 0x14af06ca8}, argc=3) at /Users/fklock/Dev/Mozilla/iontrail/js/src/vm/ParallelDo.cpp:399
#3  0x0000000104cf960b in ParallelDo::parallel (this=0x7fff5fbf5838, slice=@0x14af06d20) at /Users/fklock/Dev/Mozilla/iontrail/js/src/vm/ParallelDo.cpp:574
#4  0x0000000104c0c0b3 in js::ForkJoinShared::executePortion (this=0x7fff5fbf5290, perThread=0x14af06dc8, threadId=0) at /Users/fklock/Dev/Mozilla/iontrail/js/src/vm/ForkJoin.cpp:409
#5  0x0000000104c0bfa4 in js::ForkJoinShared::executeFromWorker (this=0x7fff5fbf5290, workerId=0, stackLimit=5551199904) at /Users/fklock/Dev/Mozilla/iontrail/js/src/vm/ForkJoin.cpp:382
#6  0x0000000104c08969 in js::ThreadPoolWorker::run (this=0x11ee11c50) at /Users/fklock/Dev/Mozilla/iontrail/js/src/vm/ThreadPool.cpp:136
#7  0x0000000104c0889d in js::ThreadPoolWorker::ThreadMain (arg=0x11ee11c50) at /Users/fklock/Dev/Mozilla/iontrail/js/src/vm/ThreadPool.cpp:113
#8  0x000000010068998a in _pt_root (arg=0x112905970) at ptthread.c:156
#9  0x00007fff8658a742 in _pthread_start ()
#10 0x00007fff86577181 in thread_start ()