Generating compound expression returning compound literal incorrectly omits final semicolon

[bbb23exposed]

ast = pycparserext.ext_c_parser.GnuCParser().parse("""
struct a {
    int m;
};

struct a test() {
    int x = 1;
    return ({
        (struct a){x};
    });
}""")

print(pycparserext.ext_c_generator.GnuCGenerator().visit(ast))

output:

{
  int m;
};
struct a test()
{
  int x = 1;
  return   {
    (struct a){x}
  }
;
}

Compare with:

ast = pycparserext.ext_c_parser.GnuCParser().parse("""
struct a {
    int m;
};

struct a test() {
    int x = 1;
    return ({
        x;
    });
}""")

output:

struct a
{
  int m;
};
struct a test()
{
  int x = 1;
  return   {
    x;
  }
;
}