### Compilation failed:

error: 1: 'flat' is not permitted here
flat                float _flat;
^^^^
error: 2: 'noperspective' is not permitted here
noperspective       float _noperspective;
^^^^^^^^^^^^^
error: 3: 'in' is not permitted here
in                  float _in;
^^
error: 4: 'out' is not permitted here
out                 float _out;
^^^
error: 5: 'threadgroup' is not permitted here
threadgroup         float _threadgroup;
^^^^^^^^^^^
error: 6: '$es3' is not permitted here
$es3                float _es3;
^^^^
error: 7: 'sk_has_side_effects' is not permitted here
sk_has_side_effects float _sk_has_side_effects;
^^^^^^^^^^^^^^^^^^^
error: 8: 'inline' is not permitted here
inline              float _inline;
^^^^^^
error: 9: 'noinline' is not permitted here
noinline            float _noinline;
^^^^^^^^
error: 10: 'readonly' is not permitted here
readonly            float _readonly;
^^^^^^^^
error: 11: 'writeonly' is not permitted here
writeonly           float _writeonly;
^^^^^^^^^
error: 13: 'flat' is not permitted here
flat                void flat_fn() {}
^^^^
error: 14: 'noperspective' is not permitted here
noperspective       void noperspective_fn() {}
^^^^^^^^^^^^^
error: 15: 'in' is not permitted here
in                  void in_fn() {}
^^
error: 16: 'out' is not permitted here
out                 void out_fn() {}
^^^
error: 17: 'threadgroup' is not permitted here
threadgroup         void threadgroup_fn() {}
^^^^^^^^^^^
error: 18: '$es3' is not permitted here
$es3                void es3_fn() {}
^^^^
error: 19: 'sk_has_side_effects' is not permitted here
sk_has_side_effects void sk_has_side_effect_fn() {}
^^^^^^^^^^^^^^^^^^^
error: 20: 'readonly' is not permitted here
readonly            void readonly_fn() {}
^^^^^^^^
error: 21: 'writeonly' is not permitted here
writeonly           void writeonly_fn() {}
^^^^^^^^^
error: 22: 'buffer' is not permitted here
buffer              void buffer_fn() {}
^^^^^^
21 errors