0.1.43

• Show a spanned compile time error for invalid module items. #124

  #[swift_bridge::bridge]
  mod ffi {
      use std;
      fn foo() {}
  }
  
  // error: Only `extern` blocks, structs and enums are supported.
  //  --> tests/ui/invalid-module-item.rs:6:5
  //   |
  // 3 |     use std;
  //   |     ^^^^^^^^
  //
  // error: Only `extern` blocks, structs and enums are supported.
  //  --> tests/ui/invalid-module-item.rs:7:5
  //   |
  // 4 |     fn foo() {}
  //   |     ^^^^^^^^^^^

• Allow enums to use the #[already_declared] attribute. #125

   // For example, the following is now possible:
  
   use some_other_bridge_module::SomeEnum;
   
   #[swift_bridge::bridge]
   mod ffi {
       #[swift_bridge(already_declared)]
       enum SomeEnum {}
   
       extern "Rust" {
           fn print(val: SomeEnum);
       }
   }