multiple moonbit bindgen issues

[kavoc-brown]

Environment

• wit-bindgen-cli: 0.47.0
• OS: Ubuntu 22.04.5 LTS (x86_64)

Run wit-bindgen moonbit --out-dir OUT /tmp/poc.wit and moon check --source-dir OUT.

Sub-issue 1

Reproduction

package local:mb-async-root;

world w {
  export foo: async func();
}

Sub-issue 2

Reproduction

package local:demo;

world w {
  import foo: async func(x: tuple<u32, u32, u32, u32, u32>);
}

Sub-issue 3

Reproduction

package local:demo;

world w {
  flags big {
    flag0,
    flag1,
    flag2,
    flag3,
    flag4,
    flag5,
    flag6,
    flag7,
    flag8,
    flag9,
    flag10,
    flag11,
    flag12,
    flag13,
    flag14,
    flag15,
    flag16,
    flag17,
    flag18,
    flag19,
    flag20,
    flag21,
    flag22,
    flag23,
    flag24,
    flag25,
    flag26,
    flag27,
    flag28,
    flag29,
    flag30,
    flag31,
    flag32,
  }

  export foo: func() -> big;
}

Sub-issue 4

Reproduction

package local:demo;

interface i {
  flags f {
    a,
  }

  record f-flag {
  }
}

world w {
  export i;
}

Sub-issue 5

Reproduction

package local:demo;

interface res {
  resource foo {
    drop: func();
  }
}

world w {
  export res;
}