rename `BorrowKind::Shallow` to `Fake`

also adds some comments

1 files changed, 2 insertions, 2 deletions

diff --git a/compiler/rustc_middle/src/mir/statement.rs b/compiler/rustc_middle/src/mir/statement.rs
index 5864acaed7b..3471d620ee6 100644
--- a/compiler/rustc_middle/src/mir/statement.rs
+++ b/compiler/rustc_middle/src/mir/statement.rs
@@ -446,7 +446,7 @@ impl<'tcx> Rvalue<'tcx> {
 impl BorrowKind {
     pub fn mutability(&self) -> Mutability {
         match *self {
-            BorrowKind::Shared | BorrowKind::Shallow => Mutability::Not,
+            BorrowKind::Shared | BorrowKind::Fake => Mutability::Not,
             BorrowKind::Mut { .. } => Mutability::Mut,
         }
     }
@@ -454,7 +454,7 @@ impl BorrowKind {
     pub fn allows_two_phase_borrow(&self) -> bool {
         match *self {
             BorrowKind::Shared
-            | BorrowKind::Shallow
+            | BorrowKind::Fake
             | BorrowKind::Mut { kind: MutBorrowKind::Default | MutBorrowKind::ClosureCapture } => {
                 false
             }