Match unmatched backticks in comments in compiler/

compiler/rustc_mir_transform/src/check_const_item_mutation.rs

@@ -74,7 +74,7 @@ impl<'tcx> ConstMutationChecker<'_, 'tcx> {
         //
         // `unsafe { *FOO = 0; *BAR.field = 1; }`
         // `unsafe { &mut *FOO }`
-        // `unsafe { (*ARRAY)[0] = val; }
+        // `unsafe { (*ARRAY)[0] = val; }`
         if !place.projection.iter().any(|p| matches!(p, PlaceElem::Deref)) {
             let source_info = self.body.source_info(location);
             let lint_root = self.body.source_scopes[source_info.scope]

compiler/rustc_mir_transform/src/coverage/spans.rs

@@ -407,7 +407,7 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
                 if self.prev().is_macro_expansion() && self.curr().is_macro_expansion() {
                     // Macros that expand to include branching (such as
                     // `assert_eq!()`, `assert_ne!()`, `info!()`, `debug!()`, or
-                    // `trace!()) typically generate callee spans with identical
+                    // `trace!()`) typically generate callee spans with identical
                     // ranges (typically the full span of the macro) for all
                     // `BasicBlocks`. This makes it impossible to distinguish
                     // the condition (`if val1 != val2`) from the optional

compiler/rustc_mir_transform/src/lib.rs

@@ -248,7 +248,7 @@ fn mir_const_qualif(tcx: TyCtxt<'_>, def: ty::WithOptConstParam<LocalDefId>) ->
 
     // N.B., this `borrow()` is guaranteed to be valid (i.e., the value
     // cannot yet be stolen), because `mir_promoted()`, which steals
-    // from `mir_const(), forces this query to execute before
+    // from `mir_const()`, forces this query to execute before
     // performing the steal.
     let body = &tcx.mir_const(def).borrow();
 

compiler/rustc_mir_transform/src/lower_slice_len.rs

@@ -68,8 +68,11 @@ fn lower_slice_len_call<'tcx>(
                 ty::FnDef(fn_def_id, _) if fn_def_id == &slice_len_fn_item_def_id => {
                     // perform modifications
                     // from something like `_5 = core::slice::<impl [u8]>::len(move _6) -> bb1`
-                    // into `_5 = Len(*_6)
+                    // into:
+                    // ```
+                    // _5 = Len(*_6)
                     // goto bb1
+                    // ```
 
                     // make new RValue for Len
                     let deref_arg = tcx.mk_place_deref(arg);