Validation crash at CreateInstance when running with libGpuLayers layer

When the Khronos validation layer is enabled, layers generated by libGpuLayers crash. I first got this with a custom layer, but layer_example also reproduces it:

Repro instructions:

1. Clone Vulkan-Samples project. Configure for Android, build and run the hello_triangle sample. Make sure validation layers are enabled (default, but you can verify on logcat). Make sure the hello_triangle sample runs correctly.
2. Clone libGpuLayers and build the layer_example using the shell script.
3. Run the injection script: lgl_android_install.py --layer layer_example
4. Launch the app and open the hello_triangle project.

Expected result:

• Layer works without errors.

Actual result:

• Layer (and the app) crashes.

Debugging:

If, instead of step (4) above, you launch the Vulkan-Samples app from Android Studio with the C++ debugger attached, it gives you the full stack trace:

(lldb) bt
* thread #27, name = 'Thread-2', stop reason = breakpoint 4.1
  * frame #0: 0x0000006d2270c8b0 libart.so`art_sigsegv_fault
    frame #1: 0x0000006d2270c200 libart.so`art::FaultManager::HandleSigsegvFault(int, siginfo*, void*) - 18446743604980301311
    frame #2: 0x0000006fccbf4a34 libsigchain.so`art::SignalChain::Handler(int, siginfo*, void*) + 372
    frame #3: 0x0000006fef641860 [vdso]`__kernel_rt_sigreturn
    frame #4: 0x0000006bfd58a534 libVkLayer_khronos_validation.so`___lldb_unnamed_symbol2918 + 44
    frame #5: 0x0000006bfd580650 libVkLayer_khronos_validation.so`___lldb_unnamed_symbol2857 + 248
    frame #6: 0x0000006c8c6b7db8 libVkLayerExample.so`___lldb_unnamed_symbol1057 + 152
    frame #7: 0x0000006fed1216dc libvulkan.so`vulkan::api::CreateInstance(VkInstanceCreateInfo const*, VkAllocationCallbacks const*, VkInstance_T**) - 18446743592990796067
    frame #8: 0x0000006c88585570 libvulkan_samples.so`HelloTriangle::init_instance(this=0xb400006f266f2690) at hello_triangle.cpp:218:2
    frame #9: 0x0000006c8858b438 libvulkan_samples.so`HelloTriangle::prepare(this=0xb400006f266f2690, options=0x0000006bffffad00) at hello_triangle.cpp:1089:2
    frame #10: 0x0000006c8801b62c libvulkan_samples.so`vkb::Platform::start_app(this=0x0000006bffffb0b0) at platform.cpp:480:19
    frame #11: 0x0000006c8801ae14 libvulkan_samples.so`vkb::Platform::main_loop_frame(this=0x0000006bffffb0b0) at platform.cpp:198:9
    frame #12: 0x0000006c8801bf3c libvulkan_samples.so`vkb::Platform::main_loop(this=0x0000006bffffb0b0) at platform.cpp:255:15
    frame #13: 0x0000006c8800fa14 libvulkan_samples.so`platform_main(context=0xb400006d766f1ea0) at main.cpp:67:19
    frame #14: 0x0000006c8800f928 libvulkan_samples.so`android_main(state=0xb400006eb66e1950) at main.cpp:43:1
    frame #15: 0x0000006c88bbfae4 libvulkan_samples.so`android_app_entry(param=0xb400006eb66e1950) at android_native_app_glue.c:236:5
    frame #16: 0x0000006fe2f52c90 libc.so`__pthread_start(void*) (.__uniq.67847048707805468364044055584648682506) + 240
    frame #17: 0x0000006fe2f449c4 libc.so`__start_thread + 68

Setup:

• Android Device: Various devices, including a Pixel 7a that has an ARM-Mali GPU.
• libGpuLayers from Feb 23 at 2413332
• Vulkan-Samples from Feb 23 at cd6db31

I checked if this is another example of multiple-layers interaction mentioned in #157 by going back to Jan'25 and re-doing the steps above. I still got the validation layer crash with layer_example.