(output_init_elements): Use FIELD instead of constructor_fields when doing alignment...

(output_init_elements): Use FIELD instead of constructor_fields when doing alignment and sizing.

(output_init_elements): Use FIELD instead of constructor_fields when
doing alignment and sizing.
(output_pending_init_elements): Don't blow up when writing other than
first field put haven't written anything yet.  Update
constructor_bit_index when we emit a skip.

From-SVN: r6414