Minimize repro:

function Module(stdlib, env) {
  "use asm";
  var x = env.bar|0;
  return { foo: function(y) { return eval(1); } };
}
Module();

Fix out for review: https://codereview.chromium.org/2558813004

ClusterFuzz has detected this issue as fixed in range 41593:41594.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5956436816560128

Fuzzer: decoder_langfuzz
Job Type: linux_asan_d8_ignition_dbg
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  VariableLocation::PARAMETER == expr->obj()->AsVariableProxy()->var()->location()
  
Regressed: V8: r41514:41515
Fixed: V8: r41593:41594

Minimized Testcase (6.86 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96vIYKibTUWBjK4op-nA86bv6gK9CSicFdXlZx8QCkxCfnt73MAA0-W32l32-L8NHjHS3071VKTmbVQJheWS2DVq7FtALCkVNTlv7VBe8DGvQ5ktXGCEreR6uicfqE3sPOr4NLh7cjlP9kw_xb-wzMcJxuxpg?testcase_id=5956436816560128

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 5956436816560128 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.