Failing elixirs on Apple Silicon

As I mentioned in #1830, many elixirs are still not working on Apple Silicon on multiple threads. To determine a definite list of elixirs, I started running all tests on 2 threads (ignoring allocation tests, which will fail on multiple threads due to extra allocations).

Here is the summary for `TreeMesh`. I'll keep running more tests in the background. The failing tests are due to slight differences in the L2/Linf errors. The errors are all due to `LoadError: cfunction: closures are not supported on this platform` (see #1462 for a solution that has to be applied to the remaining indicators).
```
Test Summary: | Pass Fail Error Total Time
TreeMesh1D | 973 2 4 979 4m50.9s
Examples 1D | 900 2 4 906 4m37.0s
Linear scalar advection | 21 21 0.9s
Inviscid Burgers | 20 20 8.1s
Hyperbolic diffusion | 14 14 1.8s
Compressible Euler | 186 1 187 25.1s
elixir_euler_source_terms.jl | 9 9 0.1s
elixir_euler_convergence_pure_fv.jl | 9 9 0.1s
elixir_euler_density_wave.jl | 9 9 0.1s
elixir_euler_density_wave.jl with initial_condition_constant | 9 9 0.1s
elixir_euler_source_terms_nonperiodic.jl | 9 9 0.1s
elixir_euler_ec.jl | 9 9 0.1s
elixir_euler_ec.jl with flux_kennedy_gruber | 9 9 0.0s
elixir_euler_ec.jl with flux_shima_etal | 9 9 0.0s
elixir_euler_ec.jl with flux_chandrashekar | 9 9 0.1s
elixir_euler_ec.jl with flux_hll | 9 9 0.1s
elixir_euler_shockcapturing.jl | 9 9 0.1s
elixir_euler_sedov_blast_wave.jl | 9 9 2.8s
elixir_euler_sedov_blast_wave.jl (HLLE) | 9 9 3.1s
elixir_euler_sedov_blast_wave_pure_fv.jl | 9 9 2.6s
elixir_euler_sedov_blast_wave.jl with pressure | 9 9 2.7s
elixir_euler_sedov_blast_wave.jl with density | 9 9 2.6s
elixir_euler_positivity.jl | 1 1 2.5s
elixir_euler_blast_wave.jl | 9 9 1.8s
elixir_euler_quasi_1d_source_terms.jl | 11 11 0.1s
elixir_euler_quasi_1d_discontinuous.jl | 11 11 2.2s
elixir_euler_quasi_1d_ec.jl | 11 11 1.7s
Compressible Euler Multicomponent | 80 80 9.9s
MHD | 209 209 53.6s
MHD Multicomponent | 113 113 20.2s
Compressible Euler with self-gravity | 9 9 6.4s
Shallow Water | 148 2 3 153 1m19.3s
elixir_shallowwater_ec.jl | 9 9 4.1s
elixir_shallowwater_ec.jl with initial_condition_weak_blast_wave | 9 9 2.3s
elixir_shallowwater_well_balanced.jl | 9 9 2.4s
elixir_shallowwater_well_balanced.jl with FluxHydrostaticReconstruction | 9 9 4.2s
elixir_shallowwater_well_balanced.jl with flux_nonconservative_ersing_etal | 9 9 3.7s
elixir_shallowwater_well_balanced_wet_dry.jl with FluxHydrostaticReconstruction | 1 1 6.1s
elixir_shallowwater_source_terms.jl | 9 9 4.7s
elixir_shallowwater_source_terms.jl with flux_hll | 9 9 4.2s
elixir_shallowwater_source_terms.jl with flux_nonconservative_ersing_etal | 9 9 4.0s
elixir_shallowwater_source_terms_dirichlet.jl | 9 9 2.0s
elixir_shallowwater_source_terms_dirichlet.jl with FluxHydrostaticReconstruction | 9 9 4.3s
elixir_shallowwater_well_balanced_nonperiodic.jl with Dirichlet boundary | 9 9 3.8s
elixir_shallowwater_well_balanced_nonperiodic.jl with wall boundary | 9 9 2.5s
elixir_shallowwater_shock_capturing.jl | 9 9 5.9s
elixir_shallowwater_beach.jl | 1 1 3.4s
elixir_shallowwater_parabolic_bowl.jl | 1 1 5.8s
elixir_shallow_water_quasi_1d_source_terms.jl | 11 11 4.4s
elixir_shallowwater_quasi_1d_well_balanced.jl | 9 2 11 4.8s
elixir_shallowwater_quasi_1d_discontinuous.jl | 11 11 4.0s
Shallow Water Two layer | 39 39 13.1s
Linear scalar advection | 10 10 15.8s
Inviscid Burgers | 15 15 17.2s
Compressible Euler | 36 36 24.9s
Tests for initial conditions | 20 20 7.1s
Displaying components 1D | 45 45 3.1s
Additional tests in 1D | 6 6 0.0s
Nonconservative terms in 1D (linear advection) | 1 1 3.6s
ERROR: LoadError: Some tests did not pass: 973 passed, 2 failed, 4 errored, 0 broken.
in expression starting at /Users/erik/git/Trixi.jl/test/test_tree_1d.jl:1
```
`test_tree_2d_part1.jl` passed.
```
Test Summary: | Pass Fail Error Total Time
TreeMesh2D Part 2 | 592 14 3 609 7m32.4s
Examples 2D | 591 14 3 608 7m32.3s
Acoustic Perturbation | 85 85 39.3s
Linearized Euler Equations 2D | 22 22 19.8s
Compressible Euler | 366 8 2 376 4m44.5s
elixir_euler_source_terms.jl | 11 11 7.9s
elixir_euler_convergence_pure_fv.jl | 11 11 9.1s
elixir_euler_density_wave.jl | 11 11 7.4s
elixir_euler_source_terms_nonperiodic.jl | 11 11 3.9s
elixir_euler_ec.jl | 11 11 7.7s
elixir_euler_ec.jl with flux_kennedy_gruber | 11 11 7.9s
elixir_euler_ec.jl with flux_chandrashekar | 11 11 8.3s
elixir_euler_shockcapturing.jl | 11 11 12.6s
elixir_euler_shockcapturing_subcell.jl | 11 11 16.6s
elixir_euler_blast_wave.jl | 11 11 10.7s
elixir_euler_blast_wave_pure_fv.jl | 11 11 5.2s
elixir_euler_blast_wave_amr.jl | 11 11 7.0s
elixir_euler_blast_wave_sc_subcell_nonperiodic.jl | 11 11 3.4s
elixir_euler_sedov_blast_wave.jl | 11 11 12.7s
elixir_euler_sedov_blast_wave_sc_subcell.jl | 3 8 11 14.2s
elixir_euler_sedov_blast_wave.jl (HLLE) | 11 11 13.5s
elixir_euler_positivity.jl | 1 1 6.0s
elixir_euler_blob_mortar.jl | 11 11 10.6s
elixir_euler_blob_amr.jl | 11 11 15.0s
elixir_euler_kelvin_helmholtz_instability_fjordholm_etal.jl | 11 11 15.9s
elixir_euler_kelvin_helmholtz_instability.jl | 11 11 3.4s
elixir_euler_kelvin_helmholtz_instability_amr.jl | 11 11 5.2s
elixir_euler_kelvin_helmholtz_instability_sc_subcell.jl | 11 11 18.2s
elixir_euler_colliding_flow.jl | 11 11 4.8s
elixir_euler_colliding_flow_amr.jl | 11 11 4.1s
elixir_euler_astro_jet_amr.jl | 11 11 6.0s
elixir_euler_vortex.jl | 11 11 4.2s
elixir_euler_vortex_mortar.jl | 11 11 4.4s
elixir_euler_vortex_mortar_split.jl | 11 11 7.8s
elixir_euler_vortex_shockcapturing.jl | 11 11 5.4s
elixir_euler_vortex_mortar_shockcapturing.jl | 11 11 3.1s
elixir_euler_vortex_amr.jl | 11 11 6.9s
elixir_euler_ec.jl with boundary_condition_slip_wall | 11 11 3.6s
elixir_euler_warm_bubble.jl | 1 1 0.4s
Compressible Euler: Tests for initial conditions | 22 22 7.0s
Compressible Euler Multicomponent | 104 6 110 1m26.7s
Testing entropy2cons and cons2entropy | 2 2 0.5s
elixir_eulermulti_shock_bubble.jl | 13 13 14.8s
elixir_eulermulti_shock_bubble_shockcapturing_subcell_positivity.jl | 15 15 15.5s
elixir_eulermulti_shock_bubble_shockcapturing_subcell_minmax.jl | 7 6 13 3.9s
elixir_eulermulti_ec.jl | 11 11 9.0s
elixir_eulermulti_es.jl | 17 17 11.6s
elixir_eulermulti_convergence_ec.jl | 13 13 10.4s
elixir_eulermulti_convergence_es.jl | 13 13 9.2s
elixir_eulermulti_convergence_es.jl with flux_chandrashekar | 13 13 10.7s
Polytropic Euler | 9 9 9.2s
Acoustic perturbation coupled with compressible Euler | 1 1 1.0s
elixir_euleracoustics_co-rotating_vortex_pair.jl | 1 1 0.7s
KPP | 5 5 11.4s
ERROR: LoadError: Some tests did not pass: 592 passed, 14 failed, 3 errored, 0 broken.
in expression starting at /Users/erik/git/Trixi.jl/test/test_tree_2d_part2.jl:1
```
```
Test Summary: | Pass Error Total Time
TreeMesh2D Part 3 | 648 3 651 10m34.6s
Examples 2D | 647 3 650 10m34.6s
MHD | 210 210 3m09.1s
MHD Multicomponent | 117 117 1m40.1s
Lattice-Boltzmann | 105 105 49.9s
Shallow Water | 110 3 113 2m22.7s
elixir_shallowwater_ec.jl | 11 11 13.2s
elixir_shallowwater_well_balanced.jl | 11 11 4.7s
elixir_shallowwater_well_balanced_wall.jl | 11 11 4.8s
elixir_shallowwater_well_balanced.jl with FluxHydrostaticReconstruction | 11 11 15.6s
elixir_shallowwater_well_balanced.jl with flux_nonconservative_ersing_etal | 11 11 11.7s
elixir_shallowwater_well_balanced_wet_dry.jl with FluxHydrostaticReconstruction | 1 1 16.3s
elixir_shallowwater_source_terms.jl | 11 11 11.2s
elixir_shallowwater_source_terms_dirichlet.jl | 11 11 4.1s
elixir_shallowwater_source_terms.jl with flux_hll | 11 11 11.6s
elixir_shallowwater_source_terms.jl with flux_nonconservative_ersing_etal | 11 11 10.6s
elixir_shallowwater_conical_island.jl | 1 1 19.8s
elixir_shallowwater_parabolic_bowl.jl | 1 1 4.2s
elixir_shallowwater_wall.jl | 11 11 12.2s
Two-Layer Shallow Water | 51 51 47.9s
Linear scalar advection | 10 10 27.0s
Compressible Euler | 44 44 1m16.9s
ERROR: LoadError: Some tests did not pass: 648 passed, 0 failed, 3 errored, 0 broken.
in expression starting at /Users/erik/git/Trixi.jl/test/test_tree_2d_part3.jl:1
```
```
Test Summary: | Pass Error Total Time
TreeMesh3D Part 1 | 222 1 223 10m08.4s
Examples 3D | 221 1 222 10m08.3s
Compressible Euler | 221 1 222 10m07.9s
elixir_euler_source_terms.jl | 13 13 1m09.7s
elixir_euler_convergence_pure_fv.jl | 13 13 30.9s
elixir_euler_source_terms.jl with split_form | 13 13 28.1s
elixir_euler_convergence.jl | 13 13 30.7s
elixir_euler_mortar.jl | 13 13 2.8s
elixir_euler_amr.jl | 13 13 36.2s
elixir_euler_taylor_green_vortex.jl | 13 13 29.2s
elixir_euler_shockcapturing.jl | 13 13 45.2s
elixir_euler_shockcapturing_amr.jl | 13 13 9.8s
elixir_euler_density_pulse.jl | 13 13 29.7s
elixir_euler_ec.jl | 13 13 10.2s
elixir_euler_ec.jl with initial_condition=initial_condition_constant | 13 13 11.2s
elixir_euler_ec.jl with flux_chandrashekar | 13 13 27.7s
elixir_euler_ec.jl with flux_kennedy_gruber | 13 13 32.0s
elixir_euler_ec.jl with flux_shima_etal | 13 13 27.6s
elixir_euler_blob_amr.jl | 1 1 30.7s
elixir_euler_sedov_blast_wave.jl | 13 13 46.4s
elixir_euler_sedov_blast_wave.jl (HLLE) | 13 13 1m44.9s
ERROR: LoadError: Some tests did not pass: 222 passed, 0 failed, 1 errored, 0 broken.
in expression starting at /Users/erik/git/Trixi.jl/test/test_tree_3d_part1.jl:1
```
```
Test Summary: | Pass Total Time
TreeMesh3D Part 2 | 127 127 4m15.7s
```
```
Test Summary: | Pass Fail Total Time
TreeMesh3D Part 2 | 320 2 322 9m47.2s
Examples 3D | 308 2 310 9m46.9s
MHD | 147 147 6m38.2s
Lattice-Boltzmann | 114 114 1m20.7s
Linear scalar advection | 8 2 10 28.1s
elixir_advection_extended.jl | 5 5 16.2s
elixir_advection_extended.jl with periodic operators | 3 2 5 11.7s
Compressible Euler | 39 39 1m19.3s
Additional tests in 3D | 11 11 0.1s
ERROR: LoadError: Some tests did not pass: 320 passed, 2 failed, 0 errored, 0 broken.
in expression starting at /Users/erik/git/Trixi.jl/test/test_tree_3d_part3.jl:1
```

Reproduce the failures by running the Julia tests with two threads on Apple Silicon, starting with test_tree_1d.jl and test_tree_2d_part1.jl. Read issue #1462 and inspect the listed elixir tests; done means the closure-related LoadError is resolved and the affected tests pass with their expected error tolerances.

Written by the indexing model from the issue text.