Sync from rust 044a28a

Author: bjorn3

src/base.rs

@@ -806,6 +806,7 @@ fn codegen_stmt<'tcx>(
         StatementKind::StorageLive(_)
         | StatementKind::StorageDead(_)
         | StatementKind::Deinit(_)
+        | StatementKind::ConstEvalCounter
         | StatementKind::Nop
         | StatementKind::FakeRead(..)
         | StatementKind::Retag { .. }

src/constant.rs

@@ -530,6 +530,7 @@ pub(crate) fn mir_operand_get_const_val<'tcx>(
                         | StatementKind::Retag(_, _)
                         | StatementKind::AscribeUserType(_, _)
                         | StatementKind::Coverage(_)
+                        | StatementKind::ConstEvalCounter
                         | StatementKind::Nop => {}
                     }
                 }

src/main_shim.rs

@@ -46,7 +46,7 @@ pub(crate) fn maybe_create_entry_wrapper(
         is_main_fn: bool,
         sigpipe: u8,
     ) {
-        let main_ret_ty = tcx.fn_sig(rust_main_def_id).output();
+        let main_ret_ty = tcx.fn_sig(rust_main_def_id).no_bound_vars().unwrap().output();
         // Given that `main()` has no arguments,
         // then its return type cannot have
         // late-bound regions, since late-bound