``````test.js``````

for (let v0 = 0; v0 < 40; v0++) {
    let v16 = RegExp.prototype
    try {
      v16.test();
    } catch (e23) {
      print(e23)
    }
  }

```````````````````

Run args: ./jsc  -f test.js --useConcurrentJIT=0 --jitPolicyScale=0

Output:
TypeError: Builtin RegExp exec can only be called on a RegExp object
TypeError: Builtin RegExp exec can only be called on a RegExp object
TypeError: Builtin RegExp exec can only be called on a RegExp object
TypeError: Builtin RegExp exec can only be called on a RegExp object
TypeError: Builtin RegExp exec can only be called on a RegExp object
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error
TypeError: Type error

When thisObject is not a RegExp object:

In RegExpPrototype.cpp, regExpProtoFuncExec throw `Builtin RegExp exec can only be called on a RegExp object`,

In DFGOperations.cpp, operationRegExpExecGeneric throw `Type error`.