tools/syz-declextract: fix empty structs and arrays

This fixes 2 bugs:
1. We completly remove empty structs, but they can have
effect on parent struct layout if they have >1 alignment.
Replace empty structs with a special auto_aligner type
that preserves alignment.

2. Arrays of 0 size are currently emitted as dynamically-sized
(we assume 0 size means "this is not a const-size array").
Add separate IsConstSize flag for arrays that marks const-size arrays.

Additionally cross-check that generated structs have exactly
the same size/alignment as the corresponding C structs.
This allows to catch the above bugs.

0 files changed, 0 insertions, 0 deletions