fix(compiler): Prevent impossible string error from pattern matching

[spotandjake]

I noticed that when we had a non exhaustive pattern including a string such as:

module Main
match ([]) {
  ["str"] => void
}

we would hit an impossible error upon further investigation i noticed that we convert the constructors from typetree nodes back into ParseTree nodes and that we did not add the quotes back onto the string when we do this, I corrected that and added two small regression tests.

Closes: #2216