Utf8JsonReader.TryGetDouble - Example data where it returns false

Hi,

Trying to learn and understand System.Text.Json Utf8JsonReader [TryGetDouble](https://docs.microsoft.com/en-us/dotnet/api/system.text.json.utf8jsonreader.trygetdouble?view=netcore-3.1) method. In particular how to get it to return false for unit testing.

Are there any example values where this method returns false?

If I use the json string value below containing a value above ```Double.MaxValue```, ```TryGetDouble``` still returns true.

``` C#
const string json = "{\"property\": 1.79769313486232E+309}";
```