Make "typeToString()" public?

[heyx3]

It would be nice if my own code could access "typeToString()", for example when generating error messages in my own parsing code (e.x. Expected a 'string', but got 'table'). Is there a reason it was left private?

[mayah]

I didn't expect it's publicly used, but probably OK to expose it. (patch welcome 😃)

[heyx3]

Sure! I'll try to make one tonight.