Variants parsed as junk if closing brace not indented

[spookylukey]

For example, the following message, taken from the JS test suite - https://github.com/projectfluent/fluent.js/blob/master/fluent/test/values_ref_test.js#L15

key2 = {
      [a] A2
     *[b] B2
}

This is parsed as 'Junk' by the Python parser. If you add a space before the closing brace, it is parsed properly. I'm assuming the JS version is correct.

[Pike]

The python parser is correct, though we're contemplating relaxing the indentation requirements in projectfluent/fluent#87.

Before we get there, we're currently working on the overall correctness of the spec, which has a few loopholes in the ebnf, too.