sass.types.Color(2,3) causes "Empty MaybeLocal" abort

[saper]

After #1058 (which is testing this) when we try to execute this:

var sass = require('./');
        sass.render({
        data: 'div { color: foo(); }',
          functions: {
            'foo()': function() {
              return sass.types.Color(2,3);
            }
          }
});

We get an abort: FATAL ERROR: v8::ToLocalChecked Empty MaybeLocal. because Color::construct() throws a C++ exception.