Segfaults while building sysimage(s) with MTK v8.4.0

[thazhemadam]

Trying to build a sysimage that has MTK v8.4.0 errors out with a segmentation fault.

• This error occurs only with MTK v8.4.0 and not v8.3.2
• Git-bisecting and rebasing around a little, I've identified start trying to precompile ModelingToolkit better #1215 as the PR that introduced this regression.
• Building a sysimage with MTK v8.4.0 in it, with the changes in the PR dropped succeeds.

MWE

using Pkg
Pkg.add(["PackageCompiler", "ModelingToolkit"])
using PackageCompiler
PackageCompiler.create_sysimage(["ModelingToolkit"]; sysimage_path = "MTK-sysimage.so")

Stack Trace

signal (11): Segmentation fault
   in expression starting at none:0
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:448
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:466
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_module at /buildworker/worker/package_linux64/build/src/staticdata.c:394 [inlined]
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:487
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:466
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:457
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:497
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:506
   jl_serialize_value_ at /buildworker/worker/package_linux64/build/src/staticdata.c:446
   jl_serialize_module at /buildworker/worker/package_linux64/build/src/staticdata.c:394 [inlined]