Better enum handling

[grigorescu]

-type my_other_enum: enum {
-       ZERO = 0,
-       ONE = 1 &deprecated="one warning",
-       TWO = 2 &deprecated="two warning",
-};
+type my_other_enum: enum { ZERO = 0, ONE = 1 &deprecated ="one warning" , TWO = 2 &deprecated ="two warning" , };

[ckreibich]

Oh yeah, good one. This works nicely on top of the recent updates to enum handling in 6e60890: this class needs logic to also register the presence of attributes as a reason to linebreak the whole sequence. If we change it at the ComplexSequenceFormatterMixin level, it'll affect other sequences too (e.g. expression lists); if we do it one inheritance level down at ComplexBlockFormatterMixin it's specific to { ... } blocks.