Fix compiler

Author: zetanumbers

compiler/rustc_borrowck/src/diagnostics/region_name.rs

@@ -721,7 +721,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
                         hir::CoroutineSource::Closure => " of async gen closure",
                         hir::CoroutineSource::Fn => {
                             let parent_item =
-                                hir.get_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
+                                tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
                             let output = &parent_item
                                 .fn_decl()
                                 .expect("coroutine lowered from async gen fn should be in fn")

compiler/rustc_hir_typeck/src/coercion.rs

@@ -1694,7 +1694,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> {
         let ret_msg = "return a value for the case when the loop has zero elements to iterate on";
         let ret_ty_msg =
             "otherwise consider changing the return type to account for that possibility";
-        if let Some(node) = hir.find(item.into())
+        if let Some(node) = tcx.opt_hir_node(item.into())
             && let Some(body_id) = node.body_id()
             && let Some(sig) = node.fn_sig()
             && let hir::ExprKind::Block(block, _) = hir.body(body_id).value.kind

compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs

@@ -1028,7 +1028,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             }
         }
         let hir_id = self.tcx.local_def_id_to_hir_id(obligation.cause.body_id);
-        let body_id = match self.tcx.hir().find(hir_id) {
+        let body_id = match self.tcx.opt_hir_node(hir_id) {
             Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. })) => {
                 body_id
             }
@@ -1154,7 +1154,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
 
             if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind
                 && let hir::Path { res: hir::def::Res::Local(hir_id), .. } = path
-                && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(*hir_id)
+                && let Some(hir::Node::Pat(binding)) = self.tcx.opt_hir_node(*hir_id)
                 && let Some(parent) = self.tcx.hir().find_parent(binding.hir_id)
             {
                 // We've reached the root of the method call chain...