Mention the panic function in CheckAlignment

Author: saethlin

compiler/rustc_mir_transform/src/check_alignment.rs

@@ -240,9 +240,9 @@ fn insert_alignment_check<'tcx>(
                 required: Operand::Copy(alignment),
                 found: Operand::Copy(addr),
             }),
-            // The panic symbol that this calls is #[rustc_nounwind]. We never want to insert an
-            // unwind into unsafe code, because unwinding could make a failing UB check turn into
-            // much worse UB when we start unwinding.
+            // This calls panic_misaligned_pointer_dereference, which is #[rustc_nounwind].
+            // We never want to insert an unwind into unsafe code, because unwinding could
+            // make a failing UB check turn into much worse UB when we start unwinding.
             unwind: UnwindAction::Unreachable,
         },
     });