Set needs_indirect_abi for Array
Set needs_indirect_abi for Array

Otherwise:

    warning: `extern` fn uses type `[u8; 3]`, which is not FFI-safe
     --> src/main.rs:8:21
      |
    8 |         fn arr() -> [u8; 3];
      |                     ^^^^^^^ not FFI-safe
      |
      = note: `#[warn(improper_ctypes_definitions)]` on by default
      = help: consider passing a pointer to the array
      = note: passing raw arrays by value is not FFI-safe

dtolnay/cxx,dtolnay/cxx,dtolnay/cxx,dtolnay/cxx