Call to JsCreateExternalArrayBuffer will throw [System.ExecutionEngineException] exception

[JohnMasen]

repro step:

1. Retrieve an JavaScriptValue (ArrayBuffer) from chakracore runtime context
2. Call JsGetArrayBufferStorage try to get the internal storage
   Expected: get the internal storage
   Actual: an [System.ExecutionEngineException] exception will throw

you can repro this issue with my code at:
https://github.com/JohnMasen/ChakraCore.NET
UnitTest: ArrayBufferReadWrite

[JohnMasen]

I've create a branch [ArrayBufferCrash] for this issue.
please use this branch to repro.

[JohnMasen]

forget it, seem this issue is gone.