Upgrading from 2.1.1 to 2.2.0 has diagnostic for file with only comments

[dsherret]

The following jsonc file returns a diagnostic in 2.2.0:

/// test
//////asdf

Diagnostic:

ValueExpected:  (20)

I know this is a rare scenario, but I believe this is a valid jsonc file and a diagnostic should not be created.

Additionally, in this scenario the return value of parser.parseTree is undefined yet the return value is not defined as possibly returning that value.

[aeschli]

Use ParseOption.allowEmptyContent to allow such inputs again.

[dsherret]

@aeschli thanks! I'll update my code to use that. By the way, I think the changelog should be corrected for 2.2—it says allowTrailingComma was added instead of allowEmptyContent. Also, this is a breaking change so it probably should have been a major version increase, but that's not a big deal as this is a pretty rare scenario.

As always, thanks for the library!

[aeschli]

You are right, should have been a major version change.
Updated the CHANGELOG.