The Issue:
Previously if you tried to set a string property with a string over 200k characters you would get the following message

Now when you try to set it you get the following error
Which is incredibly unhelpful and confusing to the user/developer receiving the error.
Reproduction steps:
Run the following script in the command bar: Instance.new("Script").Source = string.rep("a", 200000)
Expected behavior
For the previous behavior to be still there, a much more informative error message than we currently get.
