Auto merge of #72768 - JohnTitor:rollup-6kwokh6, r=JohnTitor

Rollup of 10 pull requests

Successful merges:

 - #72033 (Update RELEASES.md for 1.44.0)
 - #72162 (Add Extend::{extend_one,extend_reserve})
 - #72419 (Miri read_discriminant: return a scalar instead of raw underlying bytes)
 - #72621 (Don't bail out of trait selection when predicate references an error)
 - #72677 (Fix diagnostics for `@ ..` binding pattern in tuples and tuple structs)
 - #72710 (Add test to make sure -Wunused-crate-dependencies works with tests)
 - #72724 (Revert recursive `TokenKind::Interpolated` expansion for now)
 - #72741 (Remove unused mut from long-linker-command-lines test)
 - #72750 (Remove remaining calls to `as_local_node_id`)
 - #72752 (remove mk_bool)

Failed merges:

r? @ghost

1 files changed, 14 insertions, 0 deletions

diff --git a/src/librustc_data_structures/thin_vec.rs b/src/librustc_data_structures/thin_vec.rs
index 2befc0aa504..43002178eb9 100644
--- a/src/librustc_data_structures/thin_vec.rs
+++ b/src/librustc_data_structures/thin_vec.rs
@@ -53,6 +53,20 @@ impl<T> Extend<T> for ThinVec<T> {
             ThinVec(None) => *self = iter.into_iter().collect::<Vec<_>>().into(),
         }
     }
+
+    fn extend_one(&mut self, item: T) {
+        match *self {
+            ThinVec(Some(ref mut vec)) => vec.push(item),
+            ThinVec(None) => *self = vec![item].into(),
+        }
+    }
+
+    fn extend_reserve(&mut self, additional: usize) {
+        match *self {
+            ThinVec(Some(ref mut vec)) => vec.reserve(additional),
+            ThinVec(None) => *self = Vec::with_capacity(additional).into(),
+        }
+    }
 }
 
 impl<T: HashStable<CTX>, CTX> HashStable<CTX> for ThinVec<T> {