Pretty printer doesn't add quotes

[joshuaspence]

When using hclfmt, the following syntax is acceptable:

output foobar {}

I would have expected this to be corrected by the pretty pretty to include quotes around the resource name, i.e.

output "foobar" {}

[mitchellh]

We actually can't add quotes safely because what if the application intended it to be unquoted? They are semantically the same but stylistically different. For example, why wouldn't we do this:

"output" "foobar" {}

Or, in the TF resource case, what do we quote?

"resource" aws_instance "bar" {}

etc. See all the ambiguities? A schema-less printer can't know, so we mimic the user input.