cbruni@ could you please look into this.please feel free to re-assigned back if needed. thanks in advance !

ClusterFuzz has detected this issue as fixed in range 40511:40512.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4921179364392960

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  !field_type->NowStable() || field_type->NowContains(value) || (!FLAG_use_allocat
  
Regressed: V8: r40510:40511
Fixed: V8: r40511:40512

Minimized Testcase (0.57 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv95juqtdjaWsgiYiR54cL_ySOv-jgbEoltlKpTKFEG7hmn4C4jTdu6Tj4Tdnir295hXYch-OW5LBG9mHBIyIpqDfEqGvAz5ly62IroNfrlRm6XMZNaoxhN-xf5nmI5Kyuz5mEdXOwRjDn1aZWHRgmJEwgBJkjg?testcase_id=4921179364392960
var __v_40 = -1;
__v_2 = 21;
function __f_0(__f_23) {
  function __f_2() {
    var __v_3 = [
      {},
      function() {
        return __v_40;
      }(),
      new RegExp    ];
    return __v_3[__v_4];
  }
    for (var __v_4 = 0; __v_4 < __v_2; __v_4++) {
      var __v_5 = __f_2();
      __f_23(__v_5);
    }
}
function __f_4(__v_5) {
  var __v_22 = [, {}];
  for (var __v_23 of __v_22) {
    __v_5[Symbol.unscopables] = {__v_19: __v_23};
  }
  var __v_24 = [, undefined];
  for (var __v_25 of __v_24) {
    __v_5[Symbol.unscopables] = {};
  }
}
try {
__f_0(__f_4);
} catch(e) {; }


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