[gardening][vm][crash] `expected: Utils::IsInt(32, disp)` in `LoadIndexedInstr`

[dcharkes]

../../runtime/vm/compiler/assembler/assembler_x64.cc: 2735: error: expected: Utils::IsInt(32, disp)
version=3.6.0-edge (main) (Unknown timestamp) on "linux_x64"
pid=29978, thread=29978, isolate_group=isolate(0x6026a8e21650), isolate=(nil)((nil))
os=linux, arch=x64, comp=no, sim=no
isolate_instructions=0, vm_instructions=0
fp=7fff0418d760, sp=7fff0418d630, pc=6026a66d6f4c
  pc 0x00006026a66d6f4c fp 0x00007fff0418d760 dart::Profiler::DumpStackTrace+0x7c
  pc 0x00006026a641ce14 fp 0x00007fff0418d840 dart::Assert::Fail+0x84
  pc 0x00006026a6ae6747 fp 0x00007fff0418d880 dart::compiler::Assembler::ElementAddressForIntIndex+0xa7
  pc 0x00006026a6b8a791 fp 0x00007fff0418d8f0 dart::LoadIndexedInstr::EmitNativeCode+0x1b1
  pc 0x00006026a6b10499 fp 0x00007fff0418da60 dart::FlowGraphCompiler::VisitBlocks+0x4c9

https://logs.chromium.org/logs/dart/buildbucket/cr-buildbucket/8738390725973939873/+/u/collect_shards/dartfuzz_-_generated_programs_shard_28/task_stdout_stderr:dartfuzz-_generated_programs_shard_28

@sstrickl You might still have LoadIndexedInstr paged in, would you mind taking a look?