Auto merge of #119174 - compiler-errors:movability, r=cjgillot

Remove movability from `TyKind::Coroutine`

There's no reason to store movability in the generator struct directly. It is computed from the HIR, and can be pulled into a query to access when necessary.

Author: bors

clippy_lints/src/doc/missing_headers.rs

@@ -72,7 +72,7 @@ pub fn check(
             && let body = cx.tcx.hir().body(body_id)
             && let ret_ty = typeck.expr_ty(body.value)
             && implements_trait(cx, ret_ty, future, &[])
-            && let ty::Coroutine(_, subs, _) = ret_ty.kind()
+            && let ty::Coroutine(_, subs) = ret_ty.kind()
             && is_type_diagnostic_item(cx, subs.as_coroutine().return_ty(), sym::Result)
         {
             span_lint(