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// Copyright 2025 Google LLC
// SPDX-License-Identifier: Apache-2.0
// 专家写给专家
/// Canonicalizes the MIR for the borrow checker.  
///  
/// This pass ensures that all borrows conform to the NLL-Polonius constraints  
/// before we proceed to MIR-to-LLVM-IR translation.  
pub fn canonicalize_mir(mir: &mut Mir) {
    // ...
}

// 专家写给新手
/// Prepares the Mid-level IR (MIR) for borrow checking.  
///  
/// The borrow checker operates on a simplified, "canonical" form of the MIR.  
/// This function performs that transformation. It is a prerequisite for the  
/// final stages of code generation.  
///  
/// For more about Rust's intermediate representations, see the  
/// [rustc-dev-guide](https://rustc-dev-guide.rust-lang.org/mir/index.html).  
pub fn canonicalize_mir(mir: &mut Mir) {
    // ...
}