1a {} S;
2struct S{} S[v];
3S {} p[]
4
5/*%%*
6interface block 'a' must contain at least one field
7struct 'S' must contain at least one field
8symbol 'S' was already defined
9unknown identifier 'v'
10symbol 'S' was already defined
11expected an identifier, but found '{'
12*%%*/
13