Update basic names from review.

Co-authored-by: Yuki Okushi <[email protected]>

Author: Lee-Janggun

src/borrow_check.md

@@ -27,7 +27,7 @@ HIR. Doing borrow checking on MIR has several advantages:
 ### Major phases of the borrow checker
 
 The borrow checker source is found in
-[the `rustc_borrow_ck` module][b_c]. The main entry point is
+[the `rustc_borrow_ck` crate][b_c]. The main entry point is
 the [`mir_borrowck`] query.
 
 [b_c]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_borrowck/index.html

src/mir/optimizations.md

@@ -81,7 +81,7 @@ The list of passes run and the order in which they are run is defined by the
 [`run_optimization_passes`][rop] function. It contains an array of passes to
 run.  Each pass in the array is a struct that implements the [`MirPass`] trait.
 The array is an array of `&dyn MirPass` trait objects. Typically, a pass is
-implemented in its own submodule of the [`rustc_mir_transform`][trans] module.
+implemented in its own module of the [`rustc_mir_transform`][trans] crate.
 
 [rop]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_mir_transform/fn.run_optimization_passes.html
 [`MirPass`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_mir_transform/trait.MirPass.html