You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: macro_error.rs
    path of file: ./repos/rust-analyzer/crates/ide-diagnostics/src/handlers
    
    the code of the file until where you have to start completion: use crate::{Diagnostic, DiagnosticCode, DiagnosticsContext, Severity};

// Diagnostic: macro-error
//
// This diagnostic is shown for macro expansion errors.
pub(crate) fn macro_error(ctx: &DiagnosticsContext<'_>, d: &hir::MacroError) -> Diagnostic {
    // Use more accurate position 
    
    fn builtin_macro_fails_expansion() {
        check_diagnostics(
            r#"
#[rustc_builtin_macro]
macro_rules! include { () => {} }

#[rustc_builtin_macro]
macro_rules! compile_error { () => {} }

  include!("doesntexist");
//^^^^^^^ error: failed to load file `doesntexist`

  compile_error!("compile_error macro works");
//^^^^^^^^^^^^^ error: compile_error macro works

  compile_error! { "compile_error macro braced works" }
//^^^^^^^^^^^^^ error: compile_error macro braced works
            "#,
        );
    }