Remove HAS_TY_COROUTINE

Author: compiler-errors

Diff for: compiler/rustc_middle/src/ty/flags.rs

@@ -128,7 +128,6 @@ impl FlagComputation {
                 if should_remove_further_specializable {
                     self.flags -= TypeFlags::STILL_FURTHER_SPECIALIZABLE;
                 }
-                self.add_flags(TypeFlags::HAS_TY_COROUTINE);
             }
 
             &ty::Closure(_, args) => {

Diff for: compiler/rustc_type_ir/src/flags.rs

@@ -119,10 +119,7 @@ bitflags::bitflags! {
         /// Does this value have `InferConst::Fresh`?
         const HAS_CT_FRESH                = 1 << 23;
 
-        /// Does this have `Coroutine` or `CoroutineWitness`?
-        const HAS_TY_COROUTINE            = 1 << 24;
-
         /// Does this have any binders with bound vars (e.g. that need to be anonymized)?
-        const HAS_BINDER_VARS             = 1 << 25;
+        const HAS_BINDER_VARS             = 1 << 24;
     }
 }

Diff for: compiler/rustc_type_ir/src/visit.rs

@@ -269,10 +269,6 @@ pub trait TypeVisitableExt<I: Interner>: TypeVisitable<I> {
         self.has_type_flags(TypeFlags::HAS_TY_OPAQUE)
     }
 
-    fn has_coroutines(&self) -> bool {
-        self.has_type_flags(TypeFlags::HAS_TY_COROUTINE)
-    }
-
     fn references_error(&self) -> bool {
         self.has_type_flags(TypeFlags::HAS_ERROR)
     }