Update compiler/rustc_type_ir/src/fast_reject.rs

Author: lcnr

compiler/rustc_type_ir/src/fast_reject.rs

@@ -86,7 +86,7 @@ pub enum TreatParams {
     /// since they could be further normalized.
     // FIXME(@lcnr): This treats aliases as rigid. This is only correct if the
     // type has been structurally normalized. We should reflect this requirement
-    // in the variant name. It is currentl used incorrect in diagnostics.
+    // in the variant name. It is currently incorrectly used in diagnostics.
     AsRigid,
 }